| | | 1 | | #pragma warning disable |
| | | 2 | | // <auto-generated/> |
| | | 3 | | /* |
| | | 4 | | The MIT License (MIT) |
| | | 5 | | |
| | | 6 | | Copyright (c) 2016-2025 Maksim Volkau |
| | | 7 | | |
| | | 8 | | Permission is hereby granted, free of charge, to any person obtaining a copy |
| | | 9 | | of this software and associated documentation files (the "Software"), to deal |
| | | 10 | | in the Software without restriction, including without limitation the rights |
| | | 11 | | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| | | 12 | | copies of the Software, and to permit persons to whom the Software is |
| | | 13 | | furnished to do so, subject to the following conditions: |
| | | 14 | | |
| | | 15 | | The above copyright notice and this permission notice shall be included |
| | | 16 | | all copies or substantial portions of the Software. |
| | | 17 | | |
| | | 18 | | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| | | 19 | | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| | | 20 | | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| | | 21 | | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| | | 22 | | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| | | 23 | | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| | | 24 | | THE SOFTWARE. |
| | | 25 | | */ |
| | | 26 | | |
| | | 27 | | // ReSharper disable CoVariantArrayConversion |
| | | 28 | | #nullable disable |
| | | 29 | | |
| | | 30 | | // #define LIGHT_EXPRESSION |
| | | 31 | | |
| | | 32 | | #if DEBUG && NET6_0_OR_GREATER |
| | | 33 | | #define DEBUG_INFO_LOCAL_VARIABLE_USAGE |
| | | 34 | | #define DEMIT |
| | | 35 | | #define INTERPRETATION_DIAGNOSTICS |
| | | 36 | | #endif |
| | | 37 | | |
| | | 38 | | #if LIGHT_EXPRESSION |
| | | 39 | | #define SUPPORTS_ARGUMENT_PROVIDER |
| | | 40 | | #endif |
| | | 41 | | |
| | | 42 | | #if LIGHT_EXPRESSION |
| | | 43 | | namespace FastExpressionCompiler.LightExpression |
| | | 44 | | { |
| | | 45 | | using static FastExpressionCompiler.LightExpression.Expression; |
| | | 46 | | using PE = FastExpressionCompiler.LightExpression.ParameterExpression; |
| | | 47 | | using FastExpressionCompiler.LightExpression.ImTools; |
| | | 48 | | using FastExpressionCompiler.LightExpression.ILDecoder; |
| | | 49 | | using static FastExpressionCompiler.LightExpression.ImTools.SmallMap; |
| | | 50 | | #else |
| | | 51 | | namespace FastExpressionCompiler |
| | | 52 | | { |
| | | 53 | | using static System.Linq.Expressions.Expression; |
| | | 54 | | using PE = System.Linq.Expressions.ParameterExpression; |
| | | 55 | | using FastExpressionCompiler.ImTools; |
| | | 56 | | using FastExpressionCompiler.ILDecoder; |
| | | 57 | | using static FastExpressionCompiler.ImTools.SmallMap; |
| | | 58 | | #endif |
| | | 59 | | using System; |
| | | 60 | | using System.Collections; |
| | | 61 | | using System.Collections.Generic; |
| | | 62 | | using System.Linq; |
| | | 63 | | using System.Linq.Expressions; |
| | | 64 | | using System.Reflection; |
| | | 65 | | using System.Reflection.Emit; |
| | | 66 | | using System.Threading; |
| | | 67 | | using System.Text; |
| | | 68 | | using System.Runtime.CompilerServices; |
| | | 69 | | using System.Runtime.InteropServices; |
| | | 70 | | using System.Diagnostics; |
| | | 71 | | using System.Diagnostics.CodeAnalysis; |
| | | 72 | | using static System.Environment; |
| | | 73 | | using static CodePrinter; |
| | | 74 | | |
| | | 75 | | /// <summary>The flags for the compiler</summary> |
| | | 76 | | [Flags] |
| | | 77 | | internal enum CompilerFlags : byte |
| | | 78 | | { |
| | | 79 | | /// <summary>The default flags: Invocation lambda is inlined, no debug info</summary> |
| | | 80 | | Default = 0, |
| | | 81 | | /// <summary>Prevents the inlining of the lambda in the Invocation expression to optimize for the multiple same |
| | | 82 | | NoInvocationLambdaInlining = 1, |
| | | 83 | | /// <summary>Adds the Expression, ExpressionString, and CSharpString to the delegate closure for the debugging i |
| | | 84 | | EnableDelegateDebugInfo = 1 << 1, |
| | | 85 | | /// <summary>When the flag is set then instead of the returning `null` the specific exception is thrown*346</sum |
| | | 86 | | ThrowOnNotSupportedExpression = 1 << 2, |
| | | 87 | | /// <summary>Will try to Interpret arithmetic, logical, comparison expressions for the primitive types, |
| | | 88 | | /// and emit the IL the result only instead of the whole computation.</summary> |
| | | 89 | | DisableInterpreter = 1 << 4 |
| | | 90 | | } |
| | | 91 | | |
| | | 92 | | /// <summary>FEC Not Supported exception</summary> |
| | | 93 | | internal sealed class NotSupportedExpressionException : InvalidOperationException |
| | | 94 | | { |
| | | 95 | | /// <summary>The reason</summary> |
| | | 96 | | public readonly ExpressionCompiler.Result Reason; |
| | | 97 | | /// <summary>Constructor</summary> |
| | | 98 | | public NotSupportedExpressionException(ExpressionCompiler.Result reason) : base(reason.ToString()) => Reason = r |
| | | 99 | | /// <summary>Constructor</summary> |
| | | 100 | | public NotSupportedExpressionException(ExpressionCompiler.Result reason, string message) : base(reason + ": " + |
| | | 101 | | } |
| | | 102 | | |
| | | 103 | | /// <summary>The interface is implemented by the compiled delegate Target if `CompilerFlags.EnableDelegateDebugInfo` |
| | | 104 | | internal interface IDelegateDebugInfo |
| | | 105 | | { |
| | | 106 | | /// <summary>The lambda expression object that was compiled to the delegate</summary> |
| | | 107 | | LambdaExpression Expression { get; } |
| | | 108 | | |
| | | 109 | | /// <summary>Delegate IL op-codes</summary> |
| | | 110 | | ILInstruction[] ILInstructions { get; } |
| | | 111 | | |
| | | 112 | | /// <summary>Enumerate any nested lambdas in the delegate</summary> |
| | | 113 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 114 | | IEnumerable<IDelegateDebugInfo> EnumerateNestedLambdas(); |
| | | 115 | | } |
| | | 116 | | |
| | | 117 | | /// <summary>Compiles expression to delegate ~20 times faster than Expression.Compile. |
| | | 118 | | /// Partial to extend with your things when used as source file.</summary> |
| | | 119 | | // ReSharper disable once PartialTypeWithSinglePart |
| | | 120 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 121 | | internal static partial class ExpressionCompiler |
| | | 122 | | { |
| | | 123 | | #region Expression.CompileFast overloads for Delegate, Func, and Action |
| | | 124 | | |
| | | 125 | | /// <summary>Compiles lambda expression to TDelegate type. Use ifFastFailedReturnNull parameter to Not fallback |
| | | 126 | | public static TDelegate CompileFast<TDelegate>(this LambdaExpression lambdaExpr, |
| | | 127 | | bool ifFastFailedReturnNull = false, CompilerFlags flags = CompilerFlags.Default) where TDelegate : class => |
| | | 128 | | (TDelegate)(TryCompileBoundToFirstClosureParam( |
| | | 129 | | typeof(TDelegate) == typeof(Delegate) ? lambdaExpr.Type : typeof(TDelegate), lambdaExpr.Body, |
| | | 130 | | #if LIGHT_EXPRESSION |
| | | 131 | | lambdaExpr, |
| | | 132 | | #else |
| | | 133 | | lambdaExpr.Parameters, |
| | | 134 | | #endif |
| | | 135 | | lambdaExpr.ReturnType, flags) ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys())); |
| | | 136 | | |
| | | 137 | | /// <summary>Compiles a static method to the passed IL Generator. |
| | | 138 | | /// Could be used as alternative for `CompileToMethod` like this <code><![CDATA[funcExpr.CompileFastToIL(methodB |
| | | 139 | | /// Check `IssueTests.Issue179_Add_something_like_LambdaExpression_CompileToMethod.cs` for example.</summary> |
| | | 140 | | public static bool CompileFastToIL(this LambdaExpression lambdaExpr, ILGenerator il, CompilerFlags flags = Compi |
| | | 141 | | { |
| | | 142 | | if ((flags & CompilerFlags.EnableDelegateDebugInfo) != 0) |
| | | 143 | | throw new NotSupportedException("The `CompilerFlags.EnableDelegateDebugInfo` is not supported because th |
| | | 144 | | |
| | | 145 | | #if LIGHT_EXPRESSION |
| | | 146 | | var paramExprs = lambdaExpr; |
| | | 147 | | #else |
| | | 148 | | var paramExprs = lambdaExpr.Parameters; |
| | | 149 | | #endif |
| | | 150 | | var bodyExpr = lambdaExpr.Body; |
| | | 151 | | |
| | | 152 | | var closureInfo = new ClosureInfo(ClosureStatus.ShouldBeStaticMethod); |
| | | 153 | | var nestedLambdas = new SmallList<NestedLambdaInfo>(); |
| | | 154 | | if (!TryCollectBoundConstants(ref closureInfo, bodyExpr, paramExprs, null, ref nestedLambdas, flags)) |
| | | 155 | | return false; |
| | | 156 | | |
| | | 157 | | if ((closureInfo.Status & ClosureStatus.HasClosure) != 0) |
| | | 158 | | return false; |
| | | 159 | | |
| | | 160 | | var parent = lambdaExpr.ReturnType == typeof(void) ? ParentFlags.IgnoreResult : ParentFlags.LambdaCall; |
| | | 161 | | if (!EmittingVisitor.TryEmit(bodyExpr, paramExprs, il, ref closureInfo, flags, parent)) |
| | | 162 | | return false; |
| | | 163 | | |
| | | 164 | | il.Demit(OpCodes.Ret); |
| | | 165 | | return true; |
| | | 166 | | } |
| | | 167 | | |
| | | 168 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 169 | | public static Delegate CompileFast(this LambdaExpression lambdaExpr, bool ifFastFailedReturnNull = false, Compil |
| | | 170 | | (Delegate)TryCompileBoundToFirstClosureParam(lambdaExpr.Type, lambdaExpr.Body, |
| | | 171 | | #if LIGHT_EXPRESSION |
| | | 172 | | lambdaExpr, |
| | | 173 | | #else |
| | | 174 | | lambdaExpr.Parameters, |
| | | 175 | | #endif |
| | | 176 | | lambdaExpr.ReturnType, flags) ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 177 | | |
| | | 178 | | /// <summary>Returns the System expression itself or convert the System expression into Light Expression</summar |
| | | 179 | | public static Expression<TDelegate> FromSysExpression<TDelegate>(this System.Linq.Expressions.Expression<TDelega |
| | | 180 | | #if LIGHT_EXPRESSION |
| | | 181 | | lambdaExpr.ToLightExpression(); |
| | | 182 | | #else |
| | | 183 | | lambdaExpr; |
| | | 184 | | #endif |
| | | 185 | | |
| | | 186 | | /// <summary>Returns the System expression itself or convert the System expression into Light Expression</summar |
| | | 187 | | public static LambdaExpression FromSysExpression(this System.Linq.Expressions.LambdaExpression lambdaExpr) => |
| | | 188 | | #if LIGHT_EXPRESSION |
| | | 189 | | lambdaExpr.ToLightExpression(); |
| | | 190 | | #else |
| | | 191 | | lambdaExpr; |
| | | 192 | | #endif |
| | | 193 | | |
| | | 194 | | /// <summary>Unifies Compile for System.Linq.Expressions and FEC.LightExpression</summary> |
| | | 195 | | public static TDelegate CompileSys<TDelegate>(this Expression<TDelegate> lambdaExpr) where TDelegate : System.De |
| | | 196 | | lambdaExpr |
| | | 197 | | #if LIGHT_EXPRESSION |
| | | 198 | | .ToLambdaExpression() |
| | | 199 | | #endif |
| | | 200 | | .Compile(); |
| | | 201 | | |
| | | 202 | | /// <summary>Unifies Compile for System.Linq.Expressions and FEC.LightExpression</summary> |
| | | 203 | | public static Delegate CompileSys(this LambdaExpression lambdaExpr) => |
| | | 204 | | lambdaExpr |
| | | 205 | | #if LIGHT_EXPRESSION |
| | | 206 | | .ToLambdaExpression() |
| | | 207 | | #endif |
| | | 208 | | .Compile(); |
| | | 209 | | |
| | | 210 | | /// <summary>Compiles lambda expression to TDelegate type. Use ifFastFailedReturnNull parameter to Not fallback |
| | | 211 | | public static TDelegate CompileFast<TDelegate>(this Expression<TDelegate> lambdaExpr, bool ifFastFailedReturnNul |
| | | 212 | | CompilerFlags flags = CompilerFlags.Default) where TDelegate : System.Delegate => |
| | | 213 | | ((LambdaExpression)lambdaExpr).CompileFast<TDelegate>(ifFastFailedReturnNull, flags); |
| | | 214 | | |
| | | 215 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 216 | | public static Func<R> CompileFast<R>(this Expression<Func<R>> lambdaExpr, bool ifFastFailedReturnNull = false, |
| | | 217 | | CompilerFlags flags = CompilerFlags.Default) => |
| | | 218 | | (Func<R>)TryCompileBoundToFirstClosureParam(typeof(Func<R>), lambdaExpr.Body, |
| | | 219 | | #if LIGHT_EXPRESSION |
| | | 220 | | lambdaExpr, |
| | | 221 | | #else |
| | | 222 | | lambdaExpr.Parameters, |
| | | 223 | | #endif |
| | | 224 | | typeof(R), flags) ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 225 | | |
| | | 226 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 227 | | public static Func<T1, R> CompileFast<T1, R>(this Expression<Func<T1, R>> lambdaExpr, |
| | | 228 | | bool ifFastFailedReturnNull = false, CompilerFlags flags = CompilerFlags.Default) => |
| | | 229 | | (Func<T1, R>)TryCompileBoundToFirstClosureParam(typeof(Func<T1, R>), lambdaExpr.Body, |
| | | 230 | | #if LIGHT_EXPRESSION |
| | | 231 | | lambdaExpr, |
| | | 232 | | #else |
| | | 233 | | lambdaExpr.Parameters, |
| | | 234 | | #endif |
| | | 235 | | typeof(R), flags) ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 236 | | |
| | | 237 | | /// <summary>Compiles lambda expression to TDelegate type. Use ifFastFailedReturnNull parameter to Not fallback |
| | | 238 | | public static Func<T1, T2, R> CompileFast<T1, T2, R>(this Expression<Func<T1, T2, R>> lambdaExpr, |
| | | 239 | | bool ifFastFailedReturnNull = false, CompilerFlags flags = CompilerFlags.Default) => |
| | | 240 | | (Func<T1, T2, R>)TryCompileBoundToFirstClosureParam(typeof(Func<T1, T2, R>), lambdaExpr.Body, |
| | | 241 | | #if LIGHT_EXPRESSION |
| | | 242 | | lambdaExpr, |
| | | 243 | | #else |
| | | 244 | | lambdaExpr.Parameters, |
| | | 245 | | #endif |
| | | 246 | | typeof(R), flags) ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 247 | | |
| | | 248 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 249 | | public static Func<T1, T2, T3, R> CompileFast<T1, T2, T3, R>( |
| | | 250 | | this Expression<Func<T1, T2, T3, R>> lambdaExpr, bool ifFastFailedReturnNull = false, CompilerFlags flags = |
| | | 251 | | (Func<T1, T2, T3, R>)TryCompileBoundToFirstClosureParam(typeof(Func<T1, T2, T3, R>), lambdaExpr.Body, |
| | | 252 | | #if LIGHT_EXPRESSION |
| | | 253 | | lambdaExpr, |
| | | 254 | | #else |
| | | 255 | | lambdaExpr.Parameters, |
| | | 256 | | #endif |
| | | 257 | | typeof(R), flags) |
| | | 258 | | ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 259 | | |
| | | 260 | | /// <summary>Compiles lambda expression to TDelegate type. Use ifFastFailedReturnNull parameter to Not fallback |
| | | 261 | | public static Func<T1, T2, T3, T4, R> CompileFast<T1, T2, T3, T4, R>( |
| | | 262 | | this Expression<Func<T1, T2, T3, T4, R>> lambdaExpr, bool ifFastFailedReturnNull = false, CompilerFlags flag |
| | | 263 | | (Func<T1, T2, T3, T4, R>)TryCompileBoundToFirstClosureParam(typeof(Func<T1, T2, T3, T4, R>), lambdaExpr.Body |
| | | 264 | | #if LIGHT_EXPRESSION |
| | | 265 | | lambdaExpr, |
| | | 266 | | #else |
| | | 267 | | lambdaExpr.Parameters, |
| | | 268 | | #endif |
| | | 269 | | typeof(R), flags) |
| | | 270 | | ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 271 | | |
| | | 272 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 273 | | public static Func<T1, T2, T3, T4, T5, R> CompileFast<T1, T2, T3, T4, T5, R>( |
| | | 274 | | this Expression<Func<T1, T2, T3, T4, T5, R>> lambdaExpr, bool ifFastFailedReturnNull = false, CompilerFlags |
| | | 275 | | (Func<T1, T2, T3, T4, T5, R>)TryCompileBoundToFirstClosureParam(typeof(Func<T1, T2, T3, T4, T5, R>), lambdaE |
| | | 276 | | #if LIGHT_EXPRESSION |
| | | 277 | | lambdaExpr, |
| | | 278 | | #else |
| | | 279 | | lambdaExpr.Parameters, |
| | | 280 | | #endif |
| | | 281 | | typeof(R), flags) |
| | | 282 | | ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 283 | | |
| | | 284 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 285 | | public static Func<T1, T2, T3, T4, T5, T6, R> CompileFast<T1, T2, T3, T4, T5, T6, R>( |
| | | 286 | | this Expression<Func<T1, T2, T3, T4, T5, T6, R>> lambdaExpr, bool ifFastFailedReturnNull = false, CompilerFl |
| | | 287 | | (Func<T1, T2, T3, T4, T5, T6, R>)TryCompileBoundToFirstClosureParam(typeof(Func<T1, T2, T3, T4, T5, T6, R>), |
| | | 288 | | #if LIGHT_EXPRESSION |
| | | 289 | | lambdaExpr, |
| | | 290 | | #else |
| | | 291 | | lambdaExpr.Parameters, |
| | | 292 | | #endif |
| | | 293 | | typeof(R), flags) |
| | | 294 | | ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 295 | | |
| | | 296 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 297 | | public static Action CompileFast(this Expression<Action> lambdaExpr, bool ifFastFailedReturnNull = false, Compil |
| | | 298 | | (Action)TryCompileBoundToFirstClosureParam(typeof(Action), lambdaExpr.Body, |
| | | 299 | | #if LIGHT_EXPRESSION |
| | | 300 | | lambdaExpr, |
| | | 301 | | #else |
| | | 302 | | lambdaExpr.Parameters, |
| | | 303 | | #endif |
| | | 304 | | typeof(void), flags) ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 305 | | |
| | | 306 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 307 | | public static Action<T1> CompileFast<T1>(this Expression<Action<T1>> lambdaExpr, |
| | | 308 | | bool ifFastFailedReturnNull = false, CompilerFlags flags = CompilerFlags.Default) => |
| | | 309 | | (Action<T1>)TryCompileBoundToFirstClosureParam(typeof(Action<T1>), lambdaExpr.Body, |
| | | 310 | | #if LIGHT_EXPRESSION |
| | | 311 | | lambdaExpr, |
| | | 312 | | #else |
| | | 313 | | lambdaExpr.Parameters, |
| | | 314 | | #endif |
| | | 315 | | typeof(void), flags) ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 316 | | |
| | | 317 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 318 | | public static Action<T1, T2> CompileFast<T1, T2>(this Expression<Action<T1, T2>> lambdaExpr, |
| | | 319 | | bool ifFastFailedReturnNull = false, CompilerFlags flags = CompilerFlags.Default) => |
| | | 320 | | (Action<T1, T2>)TryCompileBoundToFirstClosureParam(typeof(Action<T1, T2>), lambdaExpr.Body, |
| | | 321 | | #if LIGHT_EXPRESSION |
| | | 322 | | lambdaExpr, |
| | | 323 | | #else |
| | | 324 | | lambdaExpr.Parameters, |
| | | 325 | | #endif |
| | | 326 | | typeof(void), flags) ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 327 | | |
| | | 328 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 329 | | public static Action<T1, T2, T3> CompileFast<T1, T2, T3>(this Expression<Action<T1, T2, T3>> lambdaExpr, |
| | | 330 | | bool ifFastFailedReturnNull = false, CompilerFlags flags = CompilerFlags.Default) => |
| | | 331 | | (Action<T1, T2, T3>)TryCompileBoundToFirstClosureParam(typeof(Action<T1, T2, T3>), lambdaExpr.Body, |
| | | 332 | | #if LIGHT_EXPRESSION |
| | | 333 | | lambdaExpr, |
| | | 334 | | #else |
| | | 335 | | lambdaExpr.Parameters, |
| | | 336 | | #endif |
| | | 337 | | typeof(void), flags) |
| | | 338 | | ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 339 | | |
| | | 340 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 341 | | public static Action<T1, T2, T3, T4> CompileFast<T1, T2, T3, T4>( |
| | | 342 | | this Expression<Action<T1, T2, T3, T4>> lambdaExpr, bool ifFastFailedReturnNull = false, CompilerFlags flags |
| | | 343 | | (Action<T1, T2, T3, T4>)TryCompileBoundToFirstClosureParam(typeof(Action<T1, T2, T3, T4>), lambdaExpr.Body, |
| | | 344 | | #if LIGHT_EXPRESSION |
| | | 345 | | lambdaExpr, |
| | | 346 | | #else |
| | | 347 | | lambdaExpr.Parameters, |
| | | 348 | | #endif |
| | | 349 | | typeof(void), flags) |
| | | 350 | | ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 351 | | |
| | | 352 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 353 | | public static Action<T1, T2, T3, T4, T5> CompileFast<T1, T2, T3, T4, T5>( |
| | | 354 | | this Expression<Action<T1, T2, T3, T4, T5>> lambdaExpr, bool ifFastFailedReturnNull = false, CompilerFlags f |
| | | 355 | | (Action<T1, T2, T3, T4, T5>)TryCompileBoundToFirstClosureParam(typeof(Action<T1, T2, T3, T4, T5>), lambdaExp |
| | | 356 | | #if LIGHT_EXPRESSION |
| | | 357 | | lambdaExpr, |
| | | 358 | | #else |
| | | 359 | | lambdaExpr.Parameters, |
| | | 360 | | #endif |
| | | 361 | | typeof(void), flags) |
| | | 362 | | ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 363 | | |
| | | 364 | | /// <summary>Compiles lambda expression to delegate. Use ifFastFailedReturnNull parameter to Not fallback to Exp |
| | | 365 | | public static Action<T1, T2, T3, T4, T5, T6> CompileFast<T1, T2, T3, T4, T5, T6>( |
| | | 366 | | this Expression<Action<T1, T2, T3, T4, T5, T6>> lambdaExpr, bool ifFastFailedReturnNull = false, CompilerFla |
| | | 367 | | (Action<T1, T2, T3, T4, T5, T6>)TryCompileBoundToFirstClosureParam(typeof(Action<T1, T2, T3, T4, T5, T6>), l |
| | | 368 | | #if LIGHT_EXPRESSION |
| | | 369 | | lambdaExpr, |
| | | 370 | | #else |
| | | 371 | | lambdaExpr.Parameters, |
| | | 372 | | #endif |
| | | 373 | | typeof(void), flags) |
| | | 374 | | ?? (ifFastFailedReturnNull ? null : lambdaExpr.CompileSys()); |
| | | 375 | | |
| | | 376 | | #endregion |
| | | 377 | | |
| | | 378 | | /// <summary>Tries to compile lambda expression to <typeparamref name="TDelegate"/></summary> |
| | | 379 | | public static TDelegate TryCompile<TDelegate>(this LambdaExpression lambdaExpr, CompilerFlags flags = CompilerFl |
| | | 380 | | where TDelegate : class => |
| | | 381 | | (TDelegate)TryCompileBoundToFirstClosureParam(typeof(TDelegate) == typeof(Delegate) ? lambdaExpr.Type : type |
| | | 382 | | #if LIGHT_EXPRESSION |
| | | 383 | | lambdaExpr, |
| | | 384 | | #else |
| | | 385 | | lambdaExpr.Parameters, |
| | | 386 | | #endif |
| | | 387 | | lambdaExpr.ReturnType, flags); |
| | | 388 | | |
| | | 389 | | /// <summary>Tries to compile lambda expression to <typeparamref name="TDelegate"/> |
| | | 390 | | /// with the provided closure object and constant expressions (or lack there of) - |
| | | 391 | | /// Constant expression should be the in order of Fields in closure object! |
| | | 392 | | /// Note 1: Use it on your own risk - FEC won't verify the expression is compile-able with passed closure, it is |
| | | 393 | | /// Note 2: The expression with NESTED LAMBDA IS NOT SUPPORTED! |
| | | 394 | | /// Note 3: `Label` and `GoTo` are not supported in this case, because they need first round to collect out-of-o |
| | | 395 | | public static TDelegate TryCompileWithPreCreatedClosure<TDelegate>(this LambdaExpression lambdaExpr, |
| | | 396 | | params ConstantExpression[] closureConstantsExprs) where TDelegate : class => |
| | | 397 | | lambdaExpr.TryCompileWithPreCreatedClosure<TDelegate>(closureConstantsExprs, CompilerFlags.Default); |
| | | 398 | | |
| | | 399 | | /// <summary>Tries to compile lambda expression to <typeparamref name="TDelegate"/> |
| | | 400 | | /// with the provided closure object and constant expressions (or lack there of)</summary> |
| | | 401 | | public static TDelegate TryCompileWithPreCreatedClosure<TDelegate>(this LambdaExpression lambdaExpr, |
| | | 402 | | ConstantExpression[] closureConstantsExprs, CompilerFlags flags) |
| | | 403 | | where TDelegate : class |
| | | 404 | | { |
| | | 405 | | var closureConstants = new object[closureConstantsExprs.Length]; |
| | | 406 | | for (var i = 0; i < closureConstants.Length; i++) |
| | | 407 | | closureConstants[i] = closureConstantsExprs[i].Value; |
| | | 408 | | |
| | | 409 | | var closureInfo = new ClosureInfo(ClosureStatus.UserProvided | ClosureStatus.HasClosure, closureConstants); |
| | | 410 | | return TryCompileWithPreCreatedClosure<TDelegate>(lambdaExpr, ref closureInfo, flags); |
| | | 411 | | } |
| | | 412 | | |
| | | 413 | | internal static TDelegate TryCompileWithPreCreatedClosure<TDelegate>( |
| | | 414 | | this LambdaExpression lambdaExpr, ref ClosureInfo closureInfo, CompilerFlags flags) where TDelegate : class |
| | | 415 | | { |
| | | 416 | | #if LIGHT_EXPRESSION |
| | | 417 | | var closurePlusParamTypes = RentPooledOrNewClosureTypeToParamTypes(lambdaExpr); |
| | | 418 | | #else |
| | | 419 | | var closurePlusParamTypes = RentPooledOrNewClosureTypeToParamTypes(lambdaExpr.Parameters); |
| | | 420 | | #endif |
| | | 421 | | var method = new DynamicMethod(string.Empty, lambdaExpr.ReturnType, closurePlusParamTypes, |
| | | 422 | | typeof(ExpressionCompiler), skipVisibility: true); |
| | | 423 | | |
| | | 424 | | var il = method.GetILGenerator(); |
| | | 425 | | EmittingVisitor.EmitLoadConstantsAndNestedLambdasIntoVars(il, ref closureInfo); |
| | | 426 | | |
| | | 427 | | var parent = lambdaExpr.ReturnType == typeof(void) ? ParentFlags.IgnoreResult : ParentFlags.LambdaCall; |
| | | 428 | | if (!EmittingVisitor.TryEmit(lambdaExpr.Body, |
| | | 429 | | #if LIGHT_EXPRESSION |
| | | 430 | | lambdaExpr, |
| | | 431 | | #else |
| | | 432 | | lambdaExpr.Parameters, |
| | | 433 | | #endif |
| | | 434 | | il, ref closureInfo, flags, parent)) |
| | | 435 | | return null; |
| | | 436 | | |
| | | 437 | | il.Demit(OpCodes.Ret); |
| | | 438 | | |
| | | 439 | | var delegateType = typeof(TDelegate) != typeof(Delegate) ? typeof(TDelegate) : lambdaExpr.Type; |
| | | 440 | | var dlg = (TDelegate)(object)method.CreateDelegate(delegateType, new ArrayClosure(closureInfo.Constants.Item |
| | | 441 | | FreePooledClosureTypeAndParamTypes(closurePlusParamTypes); |
| | | 442 | | return dlg; |
| | | 443 | | } |
| | | 444 | | |
| | | 445 | | /// <summary>Tries to compile expression to "static" delegate, skipping the step of collecting the closure objec |
| | | 446 | | public static TDelegate TryCompileWithoutClosure<TDelegate>(this LambdaExpression lambdaExpr, |
| | | 447 | | CompilerFlags flags = CompilerFlags.Default) where TDelegate : class |
| | | 448 | | { |
| | | 449 | | var closureInfo = new ClosureInfo(ClosureStatus.UserProvided); |
| | | 450 | | #if LIGHT_EXPRESSION |
| | | 451 | | var closurePlusParamTypes = RentPooledOrNewClosureTypeToParamTypes(lambdaExpr); |
| | | 452 | | #else |
| | | 453 | | var closurePlusParamTypes = RentPooledOrNewClosureTypeToParamTypes(lambdaExpr.Parameters); |
| | | 454 | | #endif |
| | | 455 | | var method = new DynamicMethod(string.Empty, lambdaExpr.ReturnType, closurePlusParamTypes, typeof(ArrayClosu |
| | | 456 | | skipVisibility: true); |
| | | 457 | | |
| | | 458 | | var il = method.GetILGenerator(); |
| | | 459 | | if (!EmittingVisitor.TryEmit(lambdaExpr.Body, |
| | | 460 | | #if LIGHT_EXPRESSION |
| | | 461 | | lambdaExpr, |
| | | 462 | | #else |
| | | 463 | | lambdaExpr.Parameters, |
| | | 464 | | #endif |
| | | 465 | | il, ref closureInfo, flags, lambdaExpr.ReturnType == typeof(void) ? ParentFlags.IgnoreResult : ParentFla |
| | | 466 | | return null; |
| | | 467 | | |
| | | 468 | | il.Demit(OpCodes.Ret); |
| | | 469 | | |
| | | 470 | | var delegateType = typeof(TDelegate) != typeof(Delegate) ? typeof(TDelegate) : lambdaExpr.Type; |
| | | 471 | | var dlg = (TDelegate)(object)method.CreateDelegate(delegateType, EmptyArrayClosure); |
| | | 472 | | FreePooledClosureTypeAndParamTypes(closurePlusParamTypes); |
| | | 473 | | return dlg; |
| | | 474 | | } |
| | | 475 | | |
| | | 476 | | private static Delegate CompileNoArgsNew(NewExpression newExpr, Type delegateType, Type[] closurePlusParamTypes, |
| | | 477 | | { |
| | | 478 | | var method = new DynamicMethod(string.Empty, returnType, closurePlusParamTypes, typeof(ArrayClosure), true); |
| | | 479 | | var il = DynamicMethodHacks.RentPooledOrNewILGenerator(method, returnType, closurePlusParamTypes, newStreamS |
| | | 480 | | il.Demit(OpCodes.Newobj, newExpr.Constructor); |
| | | 481 | | if (returnType == typeof(void)) |
| | | 482 | | il.Demit(OpCodes.Pop); |
| | | 483 | | il.Demit(OpCodes.Ret); |
| | | 484 | | |
| | | 485 | | var closure = (flags & CompilerFlags.EnableDelegateDebugInfo) == 0 |
| | | 486 | | ? EmptyArrayClosure |
| | | 487 | | : new DebugArrayClosure(null, null, Lambda(newExpr, Tools.Empty<PE>())); |
| | | 488 | | |
| | | 489 | | var dlg = method.CreateDelegate(delegateType, closure); |
| | | 490 | | DynamicMethodHacks.FreePooledILGenerator(method, il); |
| | | 491 | | |
| | | 492 | | if (closure is DebugArrayClosure diagClosure) |
| | | 493 | | diagClosure.ILInstructions = dlg.Method.ReadAllInstructions(); |
| | | 494 | | |
| | | 495 | | return dlg; |
| | | 496 | | } |
| | | 497 | | |
| | | 498 | | #if LIGHT_EXPRESSION |
| | | 499 | | internal static object TryCompileBoundToFirstClosureParam(Type delegateType, Expression bodyExpr, IParameterProv |
| | | 500 | | Type returnType, CompilerFlags flags) |
| | | 501 | | { |
| | | 502 | | // There is no Return of the pooled parameter types here, |
| | | 503 | | // because in the rarest case with the unused lambda arguments we may just exhaust the pooled instance |
| | | 504 | | var closureAndParamTypes = RentPooledOrNewClosureTypeToParamTypes(paramExprs); |
| | | 505 | | if (bodyExpr is NoArgsNewClassIntrinsicExpression newExpr) |
| | | 506 | | return CompileNoArgsNew(newExpr, delegateType, closureAndParamTypes, returnType, flags); |
| | | 507 | | #else |
| | | 508 | | internal static object TryCompileBoundToFirstClosureParam(Type delegateType, Expression bodyExpr, IReadOnlyList< |
| | | 509 | | Type returnType, CompilerFlags flags) |
| | | 510 | | { |
| | | 511 | | var closureAndParamTypes = RentPooledOrNewClosureTypeToParamTypes(paramExprs); |
| | | 512 | | #endif |
| | | 513 | | // Try to avoid compilation altogether for Func<bool> delegates via Interpreter, see #468 |
| | | 514 | | if (returnType == typeof(bool) & closureAndParamTypes.Length == 1 |
| | | 515 | | && Interpreter.IsCandidateForInterpretation(bodyExpr) |
| | | 516 | | && Interpreter.TryInterpretBool(out var result, bodyExpr, flags)) |
| | | 517 | | return result ? Interpreter.TrueFunc : Interpreter.FalseFunc; |
| | | 518 | | |
| | | 519 | | Delegate compiledDelegate = null; |
| | | 520 | | |
| | | 521 | | // The method collects the info from the all nested lambdas deep down up-front and de-duplicates the lambdas |
| | | 522 | | var closureInfo = new ClosureInfo(ClosureStatus.ToBeCollected); |
| | | 523 | | var collectResult = TryCollectInfo(ref closureInfo, bodyExpr, paramExprs, null, ref closureInfo.NestedLambda |
| | | 524 | | if (collectResult == Result.OK) |
| | | 525 | | { |
| | | 526 | | var constantsAndNestedLambdas = (closureInfo.Status & ClosureStatus.HasClosure) != 0 |
| | | 527 | | ? closureInfo.GetArrayOfConstantsAndNestedLambdas() |
| | | 528 | | : null; |
| | | 529 | | |
| | | 530 | | ArrayClosure closure; |
| | | 531 | | if ((flags & CompilerFlags.EnableDelegateDebugInfo) == 0) |
| | | 532 | | closure = constantsAndNestedLambdas == null ? EmptyArrayClosure : new ArrayClosure(constantsAndNeste |
| | | 533 | | else |
| | | 534 | | { |
| | | 535 | | var debugLambdaExpr = Lambda(delegateType, bodyExpr, paramExprs?.ToReadOnlyList() ?? Tools.Empty<PE> |
| | | 536 | | closure = new DebugArrayClosure(null, constantsAndNestedLambdas, debugLambdaExpr); |
| | | 537 | | } |
| | | 538 | | |
| | | 539 | | // note: @slow this is what System.Compiles does and which makes the compilation 10x slower, but the inv |
| | | 540 | | // var method = new DynamicMethod(string.Empty, returnType, closurePlusParamTypes, true); |
| | | 541 | | // this is FEC way, significantly faster compilation, but +1 branch instruction in the invocation |
| | | 542 | | var dynMethod = new DynamicMethod(string.Empty, returnType, closureAndParamTypes, typeof(ArrayClosure), |
| | | 543 | | |
| | | 544 | | var il = DynamicMethodHacks.RentPooledOrNewILGenerator(dynMethod, returnType, closureAndParamTypes); |
| | | 545 | | |
| | | 546 | | if (closure.ConstantsAndNestedLambdas != null) |
| | | 547 | | EmittingVisitor.EmitLoadConstantsAndNestedLambdasIntoVars(il, ref closureInfo); |
| | | 548 | | |
| | | 549 | | var parent = returnType == typeof(void) ? ParentFlags.IgnoreResult : ParentFlags.LambdaCall; |
| | | 550 | | if (returnType.IsByRef) |
| | | 551 | | parent |= ParentFlags.ReturnByRef; |
| | | 552 | | |
| | | 553 | | if (EmittingVisitor.TryEmit(bodyExpr, paramExprs, il, ref closureInfo, flags, parent)) |
| | | 554 | | { |
| | | 555 | | il.Demit(OpCodes.Ret); |
| | | 556 | | compiledDelegate = dynMethod.CreateDelegate(delegateType, closure); |
| | | 557 | | if (closure is DebugArrayClosure diagClosure) |
| | | 558 | | diagClosure.ILInstructions = compiledDelegate.Method.ReadAllInstructions(); |
| | | 559 | | } |
| | | 560 | | |
| | | 561 | | DynamicMethodHacks.FreePooledILGenerator(dynMethod, il); |
| | | 562 | | } |
| | | 563 | | FreePooledClosureTypeAndParamTypes(closureAndParamTypes); |
| | | 564 | | |
| | | 565 | | return compiledDelegate |
| | | 566 | | ?? ((flags & CompilerFlags.ThrowOnNotSupportedExpression) == 0 ? null : NotSupportedCase<object>(collect |
| | | 567 | | } |
| | | 568 | | |
| | | 569 | | private static readonly Type[] _closureAsASingleParamType = { typeof(ArrayClosure) }; |
| | | 570 | | private static readonly Type[][] _paramTypesPoolWithElem0OfLength1 = new Type[8][]; // todo: @perf @mem could we |
| | | 571 | | |
| | | 572 | | #if LIGHT_EXPRESSION |
| | | 573 | | internal static Type[] RentPooledOrNewClosureTypeToParamTypes(IParameterProvider paramExprs) |
| | | 574 | | { |
| | | 575 | | var count = paramExprs.ParameterCount; |
| | | 576 | | #else |
| | | 577 | | internal static Type[] RentPooledOrNewClosureTypeToParamTypes(IReadOnlyList<PE> paramExprs) |
| | | 578 | | { |
| | | 579 | | var count = paramExprs.Count; |
| | | 580 | | #endif |
| | | 581 | | if (count == 0) |
| | | 582 | | return _closureAsASingleParamType; |
| | | 583 | | |
| | | 584 | | var pooledOrNew = count < 8 ? Interlocked.Exchange(ref _paramTypesPoolWithElem0OfLength1[count], null) ?? ne |
| | | 585 | | pooledOrNew[0] = typeof(ArrayClosure); |
| | | 586 | | for (var i = 0; i < count; i++) |
| | | 587 | | { |
| | | 588 | | var paramExpr = paramExprs.GetParameter(i); // todo: @perf can we avoid calling virtual GetParameter() a |
| | | 589 | | pooledOrNew[i + 1] = !paramExpr.IsByRef ? paramExpr.Type : paramExpr.Type.MakeByRefType(); |
| | | 590 | | } |
| | | 591 | | |
| | | 592 | | return pooledOrNew; |
| | | 593 | | } |
| | | 594 | | |
| | | 595 | | /// <summary>Renting the array of the passed parameter types</summary> |
| | | 596 | | [MethodImpl((MethodImplOptions)256)] |
| | | 597 | | public static Type[] RentPooledOrNewParamTypes(Type p0) |
| | | 598 | | { |
| | | 599 | | var pooledOrNew = Interlocked.Exchange(ref _paramTypesPoolWithElem0OfLength1[0], null) ?? new Type[1]; |
| | | 600 | | pooledOrNew[0] = p0; |
| | | 601 | | return pooledOrNew; |
| | | 602 | | } |
| | | 603 | | |
| | | 604 | | /// <summary>Renting the array of the passed parameter types</summary> |
| | | 605 | | [MethodImpl((MethodImplOptions)256)] |
| | | 606 | | public static Type[] RentPooledOrNewParamTypes(Type p0, Type p1) |
| | | 607 | | { |
| | | 608 | | var pooledOrNew = Interlocked.Exchange(ref _paramTypesPoolWithElem0OfLength1[1], null) ?? new Type[2]; |
| | | 609 | | pooledOrNew[0] = p0; |
| | | 610 | | pooledOrNew[1] = p1; |
| | | 611 | | return pooledOrNew; |
| | | 612 | | } |
| | | 613 | | |
| | | 614 | | /// <summary>Renting the array of the passed parameter types</summary> |
| | | 615 | | [MethodImpl((MethodImplOptions)256)] |
| | | 616 | | public static Type[] RentPooledOrNewParamTypes(Type p0, Type p1, Type p2) |
| | | 617 | | { |
| | | 618 | | var pooledOrNew = Interlocked.Exchange(ref _paramTypesPoolWithElem0OfLength1[2], null) ?? new Type[3]; |
| | | 619 | | pooledOrNew[0] = p0; |
| | | 620 | | pooledOrNew[1] = p1; |
| | | 621 | | pooledOrNew[2] = p2; |
| | | 622 | | return pooledOrNew; |
| | | 623 | | } |
| | | 624 | | |
| | | 625 | | /// <summary>Renting the array of the passed parameter types</summary> |
| | | 626 | | [MethodImpl((MethodImplOptions)256)] |
| | | 627 | | public static Type[] RentPooledOrNewParamTypes(Type p0, Type p1, Type p2, Type p3) |
| | | 628 | | { |
| | | 629 | | var pooledOrNew = Interlocked.Exchange(ref _paramTypesPoolWithElem0OfLength1[3], null) ?? new Type[4]; |
| | | 630 | | pooledOrNew[0] = p0; |
| | | 631 | | pooledOrNew[1] = p1; |
| | | 632 | | pooledOrNew[2] = p2; |
| | | 633 | | pooledOrNew[3] = p3; |
| | | 634 | | return pooledOrNew; |
| | | 635 | | } |
| | | 636 | | |
| | | 637 | | /// <summary>Renting the array of the passed parameter types</summary> |
| | | 638 | | [MethodImpl((MethodImplOptions)256)] |
| | | 639 | | public static Type[] RentPooledOrNewParamTypes(Type p0, Type p1, Type p2, Type p3, Type p4) |
| | | 640 | | { |
| | | 641 | | var pooledOrNew = Interlocked.Exchange(ref _paramTypesPoolWithElem0OfLength1[4], null) ?? new Type[5]; |
| | | 642 | | pooledOrNew[0] = p0; |
| | | 643 | | pooledOrNew[1] = p1; |
| | | 644 | | pooledOrNew[2] = p2; |
| | | 645 | | pooledOrNew[3] = p3; |
| | | 646 | | pooledOrNew[4] = p4; |
| | | 647 | | return pooledOrNew; |
| | | 648 | | } |
| | | 649 | | |
| | | 650 | | /// <summary>Freeing to the pool the array of types of closure + plus the passed parameter types</summary> |
| | | 651 | | [MethodImpl((MethodImplOptions)256)] |
| | | 652 | | public static void FreePooledClosureTypeAndParamTypes(Type[] closurePlusParamTypes) |
| | | 653 | | { |
| | | 654 | | var paramCountOnly = closurePlusParamTypes.Length - 1; |
| | | 655 | | if (paramCountOnly != 0 & paramCountOnly < 8) |
| | | 656 | | Interlocked.Exchange(ref _paramTypesPoolWithElem0OfLength1[paramCountOnly], closurePlusParamTypes); |
| | | 657 | | } |
| | | 658 | | |
| | | 659 | | /// <summary>Freeing to the pool the array of the passed parameter types</summary> |
| | | 660 | | [MethodImpl((MethodImplOptions)256)] |
| | | 661 | | public static void FreePooledParamTypes(Type[] paramTypes) |
| | | 662 | | { |
| | | 663 | | var paramCount = paramTypes.Length; |
| | | 664 | | if (paramCount != 0 & paramCount < 8) |
| | | 665 | | Interlocked.Exchange(ref _paramTypesPoolWithElem0OfLength1[paramCount - 1], paramTypes); |
| | | 666 | | } |
| | | 667 | | |
| | | 668 | | |
| | | 669 | | |
| | | 670 | | /// <summary>Collects the lambda info for the compilation</summary> |
| | | 671 | | internal sealed class NestedLambdaInfo |
| | | 672 | | { |
| | | 673 | | /// <summary>Compiled lambda</summary> |
| | | 674 | | public object Lambda; // todo: @perf can we use the NestedLambdaInfo itself instead of NestedLambdaWithConst |
| | | 675 | | |
| | | 676 | | /// <summary>The nested lambdas and their info</summary> |
| | | 677 | | public SmallList<NestedLambdaInfo> NestedLambdas; |
| | | 678 | | |
| | | 679 | | /// <summary>The lambda expression</summary> |
| | | 680 | | public LambdaExpression LambdaExpression; |
| | | 681 | | |
| | | 682 | | /// <summary>Parameters not passed through lambda parameter list But used inside lambda body. |
| | | 683 | | /// The top expression should Not contain not passed parameters.</summary> |
| | | 684 | | public SmallList<ParameterExpression> NonPassedParameters; |
| | | 685 | | |
| | | 686 | | /// <summary>If the N's bit is set, it means the parameter is mutated (assigned or passed by-ref), |
| | | 687 | | /// where N is the index of the param in `NonPassedParameters`</summary> |
| | | 688 | | public ulong NonPassedParamMutatedIndexBits; |
| | | 689 | | |
| | | 690 | | /// <summary>Index of the compiled lambda in the parent lambda closure array</summary> |
| | | 691 | | public short LambdaVarIndex; |
| | | 692 | | |
| | | 693 | | /// <summary>Index of the variable which store the non-passed variables array before passing it to the closu |
| | | 694 | | /// It used to assign the closed variables from the outside of the nested lambda</summary> |
| | | 695 | | public short NonPassedParamsVarIndex; |
| | | 696 | | |
| | | 697 | | public NestedLambdaInfo(LambdaExpression lambdaExpression) => LambdaExpression = lambdaExpression; |
| | | 698 | | |
| | | 699 | | /// <summary>Compares 2 lambda expressions for equality</summary> |
| | | 700 | | public bool HasTheSameLambdaExpression(LambdaExpression lambda) => // todo: @unclear parameters or is compar |
| | | 701 | | ReferenceEquals(LambdaExpression, lambda) || |
| | | 702 | | ReferenceEquals(LambdaExpression.Body, lambda.Body) |
| | | 703 | | #if LIGHT_EXPRESSION |
| | | 704 | | && LambdaExpression.ParameterCount == lambda.ParameterCount |
| | | 705 | | #endif |
| | | 706 | | ; |
| | | 707 | | |
| | | 708 | | public override string ToString() => |
| | | 709 | | $"Lambda: {(Lambda is NestedLambdaForNonPassedParams n ? "compiled+closure" : Lambda != null ? "compiled |
| | | 710 | | } |
| | | 711 | | |
| | | 712 | | [Flags] |
| | | 713 | | internal enum ClosureStatus : byte |
| | | 714 | | { |
| | | 715 | | ToBeCollected = 1, |
| | | 716 | | UserProvided = 1 << 1, |
| | | 717 | | HasClosure = 1 << 2, |
| | | 718 | | ShouldBeStaticMethod = 1 << 3 |
| | | 719 | | } |
| | | 720 | | |
| | | 721 | | [DebuggerDisplay("Target:{Target}, InlinedLambdaInvokeIndex:{InlinedLambdaInvokeIndex}, ReturnVariableIndexPlusO |
| | | 722 | | internal struct LabelInfo |
| | | 723 | | { |
| | | 724 | | public object Target; |
| | | 725 | | public short InlinedLambdaInvokeIndex; |
| | | 726 | | public short ReturnVariableIndexPlusOneAndIsDefined; |
| | | 727 | | public Label Label; |
| | | 728 | | public Label ReturnLabel; |
| | | 729 | | } |
| | | 730 | | |
| | | 731 | | /// Track the info required to build a closure object + some context information not directly related to closure |
| | | 732 | | internal struct ClosureInfo |
| | | 733 | | { |
| | | 734 | | /// <summary>Tracks that the last emit was an address</summary> |
| | | 735 | | public bool LastEmitIsAddress; |
| | | 736 | | |
| | | 737 | | // Tracks the current block nesting count in the stack of blocks in Collect and Emit phase |
| | | 738 | | private ushort _blockCount; |
| | | 739 | | |
| | | 740 | | /// <summary>Tracks the use of the variables in the blocks stack per variable, |
| | | 741 | | /// (uint) contains (ushort) BlockIndex in the upper bits and (ushort) VarIndex in the lower bits. |
| | | 742 | | /// to determine if variable is the local variable and in what block it's defined</summary> |
| | | 743 | | private SmallMap4<PE, SmallList<uint, Stack4<uint>>, RefEq<PE>> _varInBlock; |
| | | 744 | | |
| | | 745 | | /// The map of inlined invocations collected in TryCollect and then used in TryEmit |
| | | 746 | | internal SmallMap4<InvocationExpression, Expression, RefEq<InvocationExpression>> InlinedLambdaInvocation; |
| | | 747 | | |
| | | 748 | | /// New or Call expressions containing the complex expression, e.g. inlined Lambda Invoke or Try with Finall |
| | | 749 | | internal SmallMap4<Expression, NoValue, RefEq<Expression>> ArgsContainingComplexExpression; |
| | | 750 | | |
| | | 751 | | internal bool HasComplexExpression; |
| | | 752 | | |
| | | 753 | | /// The stack for the lambda invocation and the labels bound to them |
| | | 754 | | internal SmallList<LabelInfo, Stack4<LabelInfo>> LambdaInvokeStackLabels; |
| | | 755 | | |
| | | 756 | | /// Tracks of how many gotos, labels referencing the specific target, they may be the same gotos expression, |
| | | 757 | | /// because the gotos may be reused multiple times in the big expression |
| | | 758 | | internal SmallMap4<object, (ushort, ushort), RefEq<object>> TargetToGotosAndLabels; |
| | | 759 | | |
| | | 760 | | /// This is required because we have the return from the nested lambda expression, |
| | | 761 | | /// and when inlined in the parent lambda it is no longer the return but just a jump to the label. |
| | | 762 | | internal short CurrentInlinedLambdaInvokeIndex; |
| | | 763 | | |
| | | 764 | | public ClosureStatus Status; |
| | | 765 | | |
| | | 766 | | /// Constant expressions to find an index (by reference) of constant expression from compiled expression. |
| | | 767 | | public SmallList<object> Constants; |
| | | 768 | | |
| | | 769 | | /// Constant usage count and variable index. |
| | | 770 | | /// It is a separate collection from the Constants because we directly convert later into the closure array |
| | | 771 | | public SmallList<short, Stack2<short>> ConstantUsageThenVarIndex; |
| | | 772 | | |
| | | 773 | | /// <summary>Parameters not passed through lambda parameter list But used inside lambda body. |
| | | 774 | | /// The top expression should Not contain not passed parameters.</summary> |
| | | 775 | | public SmallList<ParameterExpression> NonPassedParameters; |
| | | 776 | | |
| | | 777 | | /// <summary>The nested lambdas and their info</summary> |
| | | 778 | | public SmallList<NestedLambdaInfo> NestedLambdas; |
| | | 779 | | |
| | | 780 | | /// <summary>Populates the info</summary> |
| | | 781 | | public ClosureInfo(ClosureStatus status) |
| | | 782 | | { |
| | | 783 | | Status = status; |
| | | 784 | | Constants = new SmallList<object>(); |
| | | 785 | | LastEmitIsAddress = false; |
| | | 786 | | CurrentInlinedLambdaInvokeIndex = -1; |
| | | 787 | | } |
| | | 788 | | |
| | | 789 | | /// <summary>Populates info directly with provided closure object and constants.</summary> |
| | | 790 | | public ClosureInfo(ClosureStatus status, object[] constValues) |
| | | 791 | | { |
| | | 792 | | Status = status; |
| | | 793 | | |
| | | 794 | | Constants = new SmallList<object>(constValues ?? Tools.Empty<object>()); |
| | | 795 | | if (constValues != null) |
| | | 796 | | ConstantUsageThenVarIndex.InitCount(constValues.Length); |
| | | 797 | | |
| | | 798 | | LastEmitIsAddress = false; |
| | | 799 | | CurrentInlinedLambdaInvokeIndex = -1; |
| | | 800 | | } |
| | | 801 | | |
| | | 802 | | [MethodImpl((MethodImplOptions)256)] |
| | | 803 | | public bool ContainsConstantsOrNestedLambdas() => Constants.Count != 0 | NestedLambdas.Count != 0; |
| | | 804 | | |
| | | 805 | | public void AddConstantOrIncrementUsageCount(object value) |
| | | 806 | | { |
| | | 807 | | Status |= ClosureStatus.HasClosure; |
| | | 808 | | var constItems = Constants.Items; |
| | | 809 | | var constIndex = Constants.Count - 1; |
| | | 810 | | while (constIndex != -1 && !ReferenceEquals(constItems[constIndex], value)) |
| | | 811 | | --constIndex; |
| | | 812 | | if (constIndex == -1) |
| | | 813 | | { |
| | | 814 | | Constants.Add(value); |
| | | 815 | | ConstantUsageThenVarIndex.Add(1); |
| | | 816 | | } |
| | | 817 | | else |
| | | 818 | | { |
| | | 819 | | ++ConstantUsageThenVarIndex.GetSurePresentItemRef(constIndex); |
| | | 820 | | } |
| | | 821 | | } |
| | | 822 | | |
| | | 823 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 824 | | public void AddLabel(LabelTarget labelTarget, short inlinedLambdaInvokeIndex = -1) |
| | | 825 | | { |
| | | 826 | | // skip null labelTargets, e.g. it may be the case for LoopExpression.Continue |
| | | 827 | | if (labelTarget == null) |
| | | 828 | | return; |
| | | 829 | | GetLabelOrInvokeIndexByTarget(ref LambdaInvokeStackLabels, labelTarget, out var found); |
| | | 830 | | if (!found) |
| | | 831 | | { |
| | | 832 | | ref var label = ref LambdaInvokeStackLabels.AddDefaultAndGetRef(); |
| | | 833 | | label.Target = labelTarget; |
| | | 834 | | label.InlinedLambdaInvokeIndex = inlinedLambdaInvokeIndex; |
| | | 835 | | } |
| | | 836 | | } |
| | | 837 | | |
| | | 838 | | public short AddInlinedLambdaInvoke(InvocationExpression e) |
| | | 839 | | { |
| | | 840 | | var count = LambdaInvokeStackLabels.Count; |
| | | 841 | | for (var i = 0; i < count; ++i) |
| | | 842 | | if (LambdaInvokeStackLabels.GetSurePresentItemRef(i).Target == e) |
| | | 843 | | return (short)i; |
| | | 844 | | |
| | | 845 | | ref var label = ref LambdaInvokeStackLabels.AddDefaultAndGetRef(); |
| | | 846 | | label.Target = e; |
| | | 847 | | return (short)count; |
| | | 848 | | } |
| | | 849 | | |
| | | 850 | | public object[] GetArrayOfConstantsAndNestedLambdas() |
| | | 851 | | { |
| | | 852 | | var constCount = Constants.Count; |
| | | 853 | | var nestedLambdasCount = NestedLambdas.Count; |
| | | 854 | | if (constCount == 0) |
| | | 855 | | { |
| | | 856 | | if (nestedLambdasCount == 0) |
| | | 857 | | return null; |
| | | 858 | | |
| | | 859 | | var lambdaObjects = new object[nestedLambdasCount]; |
| | | 860 | | for (var i = 0; i < lambdaObjects.Length; i++) |
| | | 861 | | lambdaObjects[i] = NestedLambdas.Items[i].Lambda; |
| | | 862 | | return lambdaObjects; |
| | | 863 | | } |
| | | 864 | | |
| | | 865 | | // if constants `count != 0` |
| | | 866 | | var constItems = Constants.Items; |
| | | 867 | | if (nestedLambdasCount == 0) |
| | | 868 | | return constItems; |
| | | 869 | | |
| | | 870 | | var constPlusLambdaCount = constCount + nestedLambdasCount; |
| | | 871 | | |
| | | 872 | | if (constItems.Length < constPlusLambdaCount) |
| | | 873 | | Array.Resize(ref constItems, constPlusLambdaCount); |
| | | 874 | | |
| | | 875 | | for (var i = 0; i < nestedLambdasCount; ++i) |
| | | 876 | | constItems[constCount + i] = NestedLambdas.Items[i].Lambda; |
| | | 877 | | |
| | | 878 | | return constItems; |
| | | 879 | | } |
| | | 880 | | |
| | | 881 | | /// Local variable index is not known in the collecting phase when we only need to decide if ParameterExpres |
| | | 882 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 883 | | public void PushBlockWithVars(ParameterExpression blockVarExpr) => |
| | | 884 | | PushVarInBlockMap(blockVarExpr, _blockCount++, 0); |
| | | 885 | | |
| | | 886 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 887 | | public void PushBlockWithVars(ParameterExpression blockVarExpr, int varIndex) => |
| | | 888 | | PushVarInBlockMap(blockVarExpr, _blockCount++, (ushort)varIndex); |
| | | 889 | | |
| | | 890 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 891 | | public void PushBlockWithVars(IReadOnlyList<PE> blockVarExprs) |
| | | 892 | | { |
| | | 893 | | for (var i = 0; i < blockVarExprs.Count; i++) |
| | | 894 | | PushVarInBlockMap(blockVarExprs[i], _blockCount, 0); |
| | | 895 | | ++_blockCount; |
| | | 896 | | } |
| | | 897 | | |
| | | 898 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 899 | | public void PushBlockAndConstructLocalVars(IReadOnlyList<PE> blockVarExprs, ILGenerator il) |
| | | 900 | | { |
| | | 901 | | for (var i = 0; i < blockVarExprs.Count; i++) |
| | | 902 | | { |
| | | 903 | | var varExpr = blockVarExprs[i]; |
| | | 904 | | var varType = varExpr.Type; |
| | | 905 | | if (varExpr.IsByRef && !varType.IsByRef) |
| | | 906 | | varType = varType.MakeByRefType(); |
| | | 907 | | PushVarInBlockMap(varExpr, _blockCount, (ushort)il.GetNextLocalVarIndex(varType)); |
| | | 908 | | } |
| | | 909 | | ++_blockCount; |
| | | 910 | | } |
| | | 911 | | |
| | | 912 | | [MethodImpl((MethodImplOptions)256)] |
| | | 913 | | private void PushVarInBlockMap(ParameterExpression pe, ushort blockIndex, ushort varIndex) |
| | | 914 | | { |
| | | 915 | | ref var blocks = ref _varInBlock.Map.AddOrGetValueRef(pe, out _); |
| | | 916 | | if (blocks.Count == 0 || (blocks.GetLastSurePresentItem() >>> 16) != blockIndex) |
| | | 917 | | blocks.Add((uint)(blockIndex << 16) | varIndex); |
| | | 918 | | } |
| | | 919 | | |
| | | 920 | | public void PopBlock() |
| | | 921 | | { |
| | | 922 | | Debug.Assert(_blockCount > 0); |
| | | 923 | | var varCount = _varInBlock.Map.Count; |
| | | 924 | | for (var i = 0; i < varCount; ++i) |
| | | 925 | | { |
| | | 926 | | ref var varBlocks = ref _varInBlock.Map.GetSurePresentEntryRef(i); |
| | | 927 | | if (varBlocks.Value.Count == _blockCount) |
| | | 928 | | varBlocks.Value.RemoveLastSurePresentItem(); |
| | | 929 | | } |
| | | 930 | | --_blockCount; |
| | | 931 | | } |
| | | 932 | | |
| | | 933 | | [MethodImpl((MethodImplOptions)256)] |
| | | 934 | | public bool IsLocalVar(ParameterExpression varParamExpr) |
| | | 935 | | { |
| | | 936 | | ref var blocks = ref _varInBlock.Map.TryGetValueRef(varParamExpr, out var found); |
| | | 937 | | return found && blocks.Count != 0; |
| | | 938 | | } |
| | | 939 | | |
| | | 940 | | [MethodImpl((MethodImplOptions)256)] |
| | | 941 | | public int GetDefinedLocalVarOrDefault(ParameterExpression varParamExpr) |
| | | 942 | | { |
| | | 943 | | ref var blocks = ref _varInBlock.Map.TryGetValueRef(varParamExpr, out var found); |
| | | 944 | | return found && blocks.Count != 0 // rare case with the block count 0 may occur when we collected the bl |
| | | 945 | | ? (int)(blocks.GetLastSurePresentItem() & ushort.MaxValue) |
| | | 946 | | : -1; |
| | | 947 | | } |
| | | 948 | | } |
| | | 949 | | |
| | | 950 | | internal static ref LabelInfo GetLabelOrInvokeIndexByTarget( |
| | | 951 | | ref this SmallList<LabelInfo, Stack4<LabelInfo>> labels, object labelTarget, out bool found) |
| | | 952 | | { |
| | | 953 | | var count = labels.Count; |
| | | 954 | | for (var i = 0; i < count; ++i) // todo: @perf make this loop into the SmallList method to avoid index check |
| | | 955 | | { |
| | | 956 | | ref var label = ref labels[i]; |
| | | 957 | | if (label.Target == labelTarget) |
| | | 958 | | { |
| | | 959 | | found = true; |
| | | 960 | | return ref label; |
| | | 961 | | } |
| | | 962 | | } |
| | | 963 | | found = false; |
| | | 964 | | return ref RefTools<LabelInfo>.GetNullRef(); |
| | | 965 | | } |
| | | 966 | | |
| | | 967 | | [MethodImpl((MethodImplOptions)256)] |
| | | 968 | | private static Label GetOrDefineLabel(ref this LabelInfo label, ILGenerator il) |
| | | 969 | | { |
| | | 970 | | if ((label.ReturnVariableIndexPlusOneAndIsDefined & 1) == 0) |
| | | 971 | | { |
| | | 972 | | label.Label = il.DefineLabel(); |
| | | 973 | | label.ReturnVariableIndexPlusOneAndIsDefined |= 1; |
| | | 974 | | } |
| | | 975 | | return label.Label; |
| | | 976 | | } |
| | | 977 | | |
| | | 978 | | public static readonly ArrayClosure EmptyArrayClosure = new ArrayClosure(null); |
| | | 979 | | |
| | | 980 | | public static FieldInfo ArrayClosureArrayField = |
| | | 981 | | typeof(ArrayClosure).GetField(nameof(ArrayClosure.ConstantsAndNestedLambdas)); |
| | | 982 | | |
| | | 983 | | public static FieldInfo ArrayClosureWithNonPassedParamsField = |
| | | 984 | | typeof(ArrayClosureWithNonPassedParams).GetField(nameof(ArrayClosureWithNonPassedParams.NonPassedParams)); |
| | | 985 | | |
| | | 986 | | private static ConstructorInfo[] _nonPassedParamsArrayClosureCtors = typeof(ArrayClosureWithNonPassedParams).Get |
| | | 987 | | |
| | | 988 | | public static ConstructorInfo ArrayClosureWithNonPassedParamsAndConstantsCtor = _nonPassedParamsArrayClosureCtor |
| | | 989 | | |
| | | 990 | | public static ConstructorInfo ArrayClosureWithNonPassedParamsCtor = _nonPassedParamsArrayClosureCtors[1]; |
| | | 991 | | |
| | | 992 | | private static ConstructorInfo DebugArrayClosureCtor = typeof(DebugArrayClosure).GetConstructors()[0]; |
| | | 993 | | |
| | | 994 | | public static Result NotSupported_RuntimeVariables { get; private set; } |
| | | 995 | | |
| | | 996 | | internal class ArrayClosure |
| | | 997 | | { |
| | | 998 | | // todo: @feature split into two to reduce copying |
| | | 999 | | public readonly object[] ConstantsAndNestedLambdas; |
| | | 1000 | | public ArrayClosure(object[] constantsAndNestedLambdas) => ConstantsAndNestedLambdas = constantsAndNestedLam |
| | | 1001 | | } |
| | | 1002 | | |
| | | 1003 | | internal static IEnumerable<IDelegateDebugInfo> EnumerateNestedLambdas(object[] constantsAndNestedLambdas) |
| | | 1004 | | { |
| | | 1005 | | if (constantsAndNestedLambdas != null && constantsAndNestedLambdas.Length != 0) |
| | | 1006 | | // todo: @perf how to skip until the nested lambdas fast |
| | | 1007 | | foreach (var item in constantsAndNestedLambdas) |
| | | 1008 | | { |
| | | 1009 | | if (item is IDelegateDebugInfo diagInfo) |
| | | 1010 | | yield return diagInfo; |
| | | 1011 | | |
| | | 1012 | | var dlg = (item is NestedLambdaForNonPassedParams nestedLambda ? nestedLambda.NestedLambda : item) a |
| | | 1013 | | if (dlg != null && dlg.Target is IDelegateDebugInfo dlgDebugInfo) |
| | | 1014 | | yield return dlgDebugInfo; |
| | | 1015 | | } |
| | | 1016 | | } |
| | | 1017 | | |
| | | 1018 | | /// <summary>Enumerate any nested lambdas in the delegate compiled with CompilerFlags.EnableDelegateDebugInfo fl |
| | | 1019 | | public static IEnumerable<IDelegateDebugInfo> EnumerateNestedLambdas( |
| | | 1020 | | this Delegate fastCompiledDelegateWithDebugInfoFlag) => |
| | | 1021 | | fastCompiledDelegateWithDebugInfoFlag.Target is ArrayClosure closure ? EnumerateNestedLambdas(closure.Consta |
| | | 1022 | | |
| | | 1023 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 1024 | | internal sealed class DebugArrayClosure : ArrayClosureWithNonPassedParams, IDelegateDebugInfo |
| | | 1025 | | { |
| | | 1026 | | public LambdaExpression Expression { get; internal set; } |
| | | 1027 | | |
| | | 1028 | | public ILInstruction[] ILInstructions { get; internal set; } |
| | | 1029 | | |
| | | 1030 | | public DebugArrayClosure(object[] nonPassedParams, object[] constantsAndNestedLambdas, |
| | | 1031 | | LambdaExpression expr, ILInstruction[] il = null) |
| | | 1032 | | : base(nonPassedParams, constantsAndNestedLambdas) |
| | | 1033 | | { |
| | | 1034 | | Expression = expr; |
| | | 1035 | | ILInstructions = il; |
| | | 1036 | | } |
| | | 1037 | | |
| | | 1038 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 1039 | | public IEnumerable<IDelegateDebugInfo> EnumerateNestedLambdas() => |
| | | 1040 | | ExpressionCompiler.EnumerateNestedLambdas(ConstantsAndNestedLambdas); |
| | | 1041 | | } |
| | | 1042 | | |
| | | 1043 | | // todo: @perf better to move the case with no constants to another class OR we can reuse ArrayClosure but now C |
| | | 1044 | | internal class ArrayClosureWithNonPassedParams : ArrayClosure |
| | | 1045 | | { |
| | | 1046 | | public readonly object[] NonPassedParams; |
| | | 1047 | | public ArrayClosureWithNonPassedParams(object[] nonPassedParams, object[] constantsAndNestedLambdas) : base( |
| | | 1048 | | NonPassedParams = nonPassedParams; |
| | | 1049 | | public ArrayClosureWithNonPassedParams(object[] nonPassedParams) : base(null) => |
| | | 1050 | | NonPassedParams = nonPassedParams; |
| | | 1051 | | } |
| | | 1052 | | |
| | | 1053 | | // todo: @perf this class is required until we (maybe) move to single constants list per lambda hierarchy |
| | | 1054 | | // Those two classes are required only if there are non-passed parameters, |
| | | 1055 | | // this class stores the context for creating the ArrayClosureWithNonPassedParams at the point of emitting the n |
| | | 1056 | | // See the #437 and #353 for the context |
| | | 1057 | | internal class NestedLambdaForNonPassedParams |
| | | 1058 | | { |
| | | 1059 | | public static FieldInfo NestedLambdaField = |
| | | 1060 | | typeof(NestedLambdaForNonPassedParams).GetField(nameof(NestedLambda)); |
| | | 1061 | | public static FieldInfo NonPassedParamsField = |
| | | 1062 | | typeof(NestedLambdaForNonPassedParams).GetField(nameof(NonPassedParams)); |
| | | 1063 | | |
| | | 1064 | | |
| | | 1065 | | public readonly object NestedLambda; |
| | | 1066 | | public object[] NonPassedParams; |
| | | 1067 | | |
| | | 1068 | | public NestedLambdaForNonPassedParams(object nestedLambda) => NestedLambda = nestedLambda; |
| | | 1069 | | } |
| | | 1070 | | |
| | | 1071 | | internal class NestedLambdaForNonPassedParamsWithConstants : NestedLambdaForNonPassedParams |
| | | 1072 | | { |
| | | 1073 | | public static FieldInfo ConstantsAndNestedLambdasField = |
| | | 1074 | | typeof(NestedLambdaForNonPassedParamsWithConstants).GetField(nameof(ConstantsAndNestedLambdas)); |
| | | 1075 | | |
| | | 1076 | | public readonly object[] ConstantsAndNestedLambdas; |
| | | 1077 | | public NestedLambdaForNonPassedParamsWithConstants(object nestedLambda, object[] constantsAndNestedLambdas) |
| | | 1078 | | : base(nestedLambda) => ConstantsAndNestedLambdas = constantsAndNestedLambdas; |
| | | 1079 | | } |
| | | 1080 | | |
| | | 1081 | | internal sealed class NestedLambdaForNonPassedParamsWithConstantsWithDebugInfo : NestedLambdaForNonPassedParamsW |
| | | 1082 | | { |
| | | 1083 | | public LambdaExpression Expression { get; } |
| | | 1084 | | public ILInstruction[] ILInstructions { get; internal set; } |
| | | 1085 | | public NestedLambdaForNonPassedParamsWithConstantsWithDebugInfo(object nestedLambda, object[] constantsAndNe |
| | | 1086 | | : base(nestedLambda, constantsAndNestedLambdas) => Expression = expr; |
| | | 1087 | | |
| | | 1088 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 1089 | | public IEnumerable<IDelegateDebugInfo> EnumerateNestedLambdas() => |
| | | 1090 | | ExpressionCompiler.EnumerateNestedLambdas(ConstantsAndNestedLambdas); |
| | | 1091 | | } |
| | | 1092 | | |
| | | 1093 | | internal static class CurryClosureFuncs |
| | | 1094 | | { |
| | | 1095 | | public static readonly MethodInfo[] Methods = typeof(CurryClosureFuncs).GetMethods(); |
| | | 1096 | | |
| | | 1097 | | // todo: @mem @perf can we avoid closure creation over `f` and `c`? |
| | | 1098 | | public static Func<R> Curry<C, R>(Func<C, R> f, C c) => |
| | | 1099 | | () => f(c); |
| | | 1100 | | |
| | | 1101 | | public static Func<T1, R> Curry<C, T1, R>(Func<C, T1, R> f, C c) => |
| | | 1102 | | t1 => f(c, t1); |
| | | 1103 | | |
| | | 1104 | | public static Func<T1, T2, R> Curry<C, T1, T2, R>(Func<C, T1, T2, R> f, C c) => |
| | | 1105 | | (t1, t2) => f(c, t1, t2); |
| | | 1106 | | |
| | | 1107 | | public static Func<T1, T2, T3, R> Curry<C, T1, T2, T3, R>(Func<C, T1, T2, T3, R> f, C c) => |
| | | 1108 | | (t1, t2, t3) => f(c, t1, t2, t3); |
| | | 1109 | | |
| | | 1110 | | public static Func<T1, T2, T3, T4, R> Curry<C, T1, T2, T3, T4, R>(Func<C, T1, T2, T3, T4, R> f, C c) => |
| | | 1111 | | (t1, t2, t3, t4) => f(c, t1, t2, t3, t4); |
| | | 1112 | | |
| | | 1113 | | public static Func<T1, T2, T3, T4, T5, R> Curry<C, T1, T2, T3, T4, T5, R>(Func<C, T1, T2, T3, T4, T5, R> f, |
| | | 1114 | | C c) => (t1, t2, t3, t4, t5) => f(c, t1, t2, t3, t4, t5); |
| | | 1115 | | |
| | | 1116 | | public static Func<T1, T2, T3, T4, T5, T6, R> |
| | | 1117 | | Curry<C, T1, T2, T3, T4, T5, T6, R>(Func<C, T1, T2, T3, T4, T5, T6, R> f, C c) => |
| | | 1118 | | (t1, t2, t3, t4, t5, t6) => f(c, t1, t2, t3, t4, t5, t6); |
| | | 1119 | | |
| | | 1120 | | public static Func<T1, T2, T3, T4, T5, T6, T7, R> |
| | | 1121 | | Curry<C, T1, T2, T3, T4, T5, T6, T7, R>(Func<C, T1, T2, T3, T4, T5, T6, T7, R> f, C c) => |
| | | 1122 | | (t1, t2, t3, t4, t5, t6, t7) => f(c, t1, t2, t3, t4, t5, t6, t7); |
| | | 1123 | | |
| | | 1124 | | public static Func<T1, T2, T3, T4, T5, T6, T7, T8, R> |
| | | 1125 | | Curry<C, T1, T2, T3, T4, T5, T6, T7, T8, R>(Func<C, T1, T2, T3, T4, T5, T6, T7, T8, R> f, C c) => |
| | | 1126 | | (t1, t2, t3, t4, t5, t6, t7, t8) => f(c, t1, t2, t3, t4, t5, t6, t7, t8); |
| | | 1127 | | |
| | | 1128 | | public static Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, R> |
| | | 1129 | | Curry<C, T1, T2, T3, T4, T5, T6, T7, T8, T9, R>(Func<C, T1, T2, T3, T4, T5, T6, T7, T8, T9, R> f, C c) = |
| | | 1130 | | (t1, t2, t3, t4, t5, t6, t7, t8, t9) => f(c, t1, t2, t3, t4, t5, t6, t7, t8, t9); |
| | | 1131 | | |
| | | 1132 | | public static Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, R> |
| | | 1133 | | Curry<C, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, R>(Func<C, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, R> |
| | | 1134 | | (t1, t2, t3, t4, t5, t6, t7, t8, t9, t10) => f(c, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10); |
| | | 1135 | | } |
| | | 1136 | | |
| | | 1137 | | internal static class CurryClosureActions |
| | | 1138 | | { |
| | | 1139 | | public static readonly MethodInfo[] Methods = typeof(CurryClosureActions).GetMethods(); |
| | | 1140 | | |
| | | 1141 | | public static Action Curry<C>(Action<C> a, C c) => |
| | | 1142 | | () => a(c); |
| | | 1143 | | |
| | | 1144 | | public static Action<T1> Curry<C, T1>(Action<C, T1> f, C c) => |
| | | 1145 | | t1 => f(c, t1); |
| | | 1146 | | |
| | | 1147 | | public static Action<T1, T2> Curry<C, T1, T2>(Action<C, T1, T2> f, C c) => |
| | | 1148 | | (t1, t2) => f(c, t1, t2); |
| | | 1149 | | |
| | | 1150 | | public static Action<T1, T2, T3> Curry<C, T1, T2, T3>(Action<C, T1, T2, T3> f, C c) => |
| | | 1151 | | (t1, t2, t3) => f(c, t1, t2, t3); |
| | | 1152 | | |
| | | 1153 | | public static Action<T1, T2, T3, T4> Curry<C, T1, T2, T3, T4>(Action<C, T1, T2, T3, T4> f, C c) => |
| | | 1154 | | (t1, t2, t3, t4) => f(c, t1, t2, t3, t4); |
| | | 1155 | | |
| | | 1156 | | public static Action<T1, T2, T3, T4, T5> Curry<C, T1, T2, T3, T4, T5>(Action<C, T1, T2, T3, T4, T5> f, |
| | | 1157 | | C c) => (t1, t2, t3, t4, t5) => f(c, t1, t2, t3, t4, t5); |
| | | 1158 | | |
| | | 1159 | | public static Action<T1, T2, T3, T4, T5, T6> |
| | | 1160 | | Curry<C, T1, T2, T3, T4, T5, T6>(Action<C, T1, T2, T3, T4, T5, T6> f, C c) => |
| | | 1161 | | (t1, t2, t3, t4, t5, t6) => f(c, t1, t2, t3, t4, t5, t6); |
| | | 1162 | | |
| | | 1163 | | public static Action<T1, T2, T3, T4, T5, T6, T7> |
| | | 1164 | | Curry<C, T1, T2, T3, T4, T5, T6, T7>(Action<C, T1, T2, T3, T4, T5, T6, T7> f, C c) => |
| | | 1165 | | (t1, t2, t3, t4, t5, t6, t7) => f(c, t1, t2, t3, t4, t5, t6, t7); |
| | | 1166 | | |
| | | 1167 | | public static Action<T1, T2, T3, T4, T5, T6, T7, T8> |
| | | 1168 | | Curry<C, T1, T2, T3, T4, T5, T6, T7, T8>(Action<C, T1, T2, T3, T4, T5, T6, T7, T8> f, C c) => |
| | | 1169 | | (t1, t2, t3, t4, t5, t6, t7, t8) => f(c, t1, t2, t3, t4, t5, t6, t7, t8); |
| | | 1170 | | |
| | | 1171 | | public static Action<T1, T2, T3, T4, T5, T6, T7, T8, T9> |
| | | 1172 | | Curry<C, T1, T2, T3, T4, T5, T6, T7, T8, T9>(Action<C, T1, T2, T3, T4, T5, T6, T7, T8, T9> f, C c) => |
| | | 1173 | | (t1, t2, t3, t4, t5, t6, t7, t8, t9) => f(c, t1, t2, t3, t4, t5, t6, t7, t8, t9); |
| | | 1174 | | |
| | | 1175 | | public static Action<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> |
| | | 1176 | | Curry<C, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(Action<C, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> f, |
| | | 1177 | | (t1, t2, t3, t4, t5, t6, t7, t8, t9, t10) => f(c, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10); |
| | | 1178 | | } |
| | | 1179 | | |
| | | 1180 | | #region Collect Bound Constants |
| | | 1181 | | |
| | | 1182 | | /// Helps to identify constants as the one to be put into the Closure |
| | | 1183 | | public static bool IsClosureBoundConstant(object value, Type type) => |
| | | 1184 | | value is Delegate || type.IsArray || |
| | | 1185 | | !type.IsPrimitive && !type.IsEnum && value is string == false && value is Type == false && value is decimal |
| | | 1186 | | |
| | | 1187 | | internal enum Result |
| | | 1188 | | { |
| | | 1189 | | OK = 0, |
| | | 1190 | | ExpressionIsNull = 1, |
| | | 1191 | | ParameterIsNotVariableNorInPassedParameters = 2, |
| | | 1192 | | NestedLambdaCompileError = 102, |
| | | 1193 | | NotSupported_UnknownExpression = 1000, |
| | | 1194 | | /// <summary>Multi-dimensional array initializer is not supported</summary> |
| | | 1195 | | NotSupported_NewArrayInit_MultidimensionalArray = 1001, |
| | | 1196 | | /// <summary>Quote is not supported</summary> |
| | | 1197 | | NotSupported_Quote = 1002, |
| | | 1198 | | /// <summary>Dynamic is not supported</summary> |
| | | 1199 | | NotSupported_Dynamic = 1003, |
| | | 1200 | | /// <summary>RuntimeVariables is not supported</summary> |
| | | 1201 | | NotSupported_RuntimeVariables = 1004, |
| | | 1202 | | /// <summary>MemberInit MemberBinding is not supported</summary> |
| | | 1203 | | NotSupported_MemberInit_MemberBinding = 1005, |
| | | 1204 | | /// <summary>MemberInit ListBinding is not supported</summary> |
| | | 1205 | | NotSupported_MemberInit_ListBinding = 1006, |
| | | 1206 | | /// <summary>Goto of the Return kind from the TryCatch is not supported</summary> |
| | | 1207 | | NotSupported_Try_GotoReturnToTheFollowupLabel = 1007, |
| | | 1208 | | /// <summary>Not supported assignment target</summary> |
| | | 1209 | | NotSupported_Assign_Target = 1008, |
| | | 1210 | | /// <summary>TypeEqual is not supported </summary> |
| | | 1211 | | NotSupported_TypeEqual = 1009, |
| | | 1212 | | /// <summary>`when` in catch is not supported yet</summary> |
| | | 1213 | | NotSupported_ExceptionCatchFilter = 1010 |
| | | 1214 | | } |
| | | 1215 | | |
| | | 1216 | | /// <summary>Return value is ignored</summary> |
| | | 1217 | | [MethodImpl(MethodImplOptions.NoInlining)] |
| | | 1218 | | internal static T NotSupportedCase<T>(Result reason) |
| | | 1219 | | { |
| | | 1220 | | if (reason == Result.OK) |
| | | 1221 | | { |
| | | 1222 | | Debug.WriteLine($"Not support case found in TryEmit phase because the TryCollect phase is {reason}"); |
| | | 1223 | | Debugger.Break(); |
| | | 1224 | | } |
| | | 1225 | | Debug.WriteLine($"Not supported case is found with the reason: {reason}"); |
| | | 1226 | | throw new NotSupportedExpressionException(reason); |
| | | 1227 | | } |
| | | 1228 | | |
| | | 1229 | | /// <summary>Wraps the call to `TryCollectInfo` for the compatibility and provide the root place to check the re |
| | | 1230 | | /// Important: The method collects the info from the nested lambdas up-front and de-duplicates the lambdas as we |
| | | 1231 | | [MethodImpl((MethodImplOptions)256)] |
| | | 1232 | | public static bool TryCollectBoundConstants(ref ClosureInfo closure, Expression expr, |
| | | 1233 | | #if LIGHT_EXPRESSION |
| | | 1234 | | IParameterProvider paramExprs, // `paramExprs` are required for nested lambda compilation |
| | | 1235 | | #else |
| | | 1236 | | IReadOnlyList<PE> paramExprs, |
| | | 1237 | | #endif |
| | | 1238 | | NestedLambdaInfo nestedLambda, ref SmallList<NestedLambdaInfo> rootNestedLambdas, CompilerFlags flags) |
| | | 1239 | | { |
| | | 1240 | | var r = TryCollectInfo(ref closure, expr, paramExprs, nestedLambda, ref rootNestedLambdas, flags); |
| | | 1241 | | return r == Result.OK || (flags & CompilerFlags.ThrowOnNotSupportedExpression) != 0 && NotSupportedCase<bool |
| | | 1242 | | } |
| | | 1243 | | |
| | | 1244 | | /// <summary>Collects the information about closure constants, nested lambdas, non-passed parameters, goto label |
| | | 1245 | | /// Returns `OK` result if everything is fine and other result for error.</summary> |
| | | 1246 | | public static Result TryCollectInfo(ref ClosureInfo closure, Expression expr, |
| | | 1247 | | #if LIGHT_EXPRESSION |
| | | 1248 | | IParameterProvider paramExprs, |
| | | 1249 | | #else |
| | | 1250 | | IReadOnlyList<PE> paramExprs, |
| | | 1251 | | #endif |
| | | 1252 | | NestedLambdaInfo nestedLambda, ref SmallList<NestedLambdaInfo> rootNestedLambdas, CompilerFlags flags) |
| | | 1253 | | { |
| | | 1254 | | var r = Result.OK; |
| | | 1255 | | while (true) |
| | | 1256 | | { |
| | | 1257 | | if (expr == null) |
| | | 1258 | | return Result.ExpressionIsNull; |
| | | 1259 | | #if LIGHT_EXPRESSION |
| | | 1260 | | if (expr.IsIntrinsic) |
| | | 1261 | | return expr.TryCollectInfo(flags, ref closure, paramExprs, nestedLambda, ref rootNestedLambdas); |
| | | 1262 | | #endif |
| | | 1263 | | switch (expr.NodeType) |
| | | 1264 | | { |
| | | 1265 | | case ExpressionType.Constant: |
| | | 1266 | | #if LIGHT_EXPRESSION |
| | | 1267 | | if (expr == NullConstant | expr == FalseConstant | expr == TrueConstant || expr is IntConstantEx |
| | | 1268 | | return r; |
| | | 1269 | | #endif |
| | | 1270 | | var constantExpr = (ConstantExpression)expr; |
| | | 1271 | | var value = constantExpr.Value; |
| | | 1272 | | if (value != null && IsClosureBoundConstant(value, value.GetType())) |
| | | 1273 | | closure.AddConstantOrIncrementUsageCount(value); |
| | | 1274 | | return Result.OK; |
| | | 1275 | | |
| | | 1276 | | case ExpressionType.Parameter: |
| | | 1277 | | { |
| | | 1278 | | #if LIGHT_EXPRESSION |
| | | 1279 | | var paramCount = paramExprs.ParameterCount; |
| | | 1280 | | #else |
| | | 1281 | | var paramCount = paramExprs.Count; |
| | | 1282 | | #endif |
| | | 1283 | | // if parameter is used BUT is not in passed parameters and not in local variables, |
| | | 1284 | | // it means parameter is provided by outer lambda and should be put in closure for current l |
| | | 1285 | | var p = paramCount - 1; |
| | | 1286 | | var parExpr = (PE)expr; |
| | | 1287 | | while (p != -1 && !ReferenceEquals(paramExprs.GetParameter(p), parExpr)) --p; |
| | | 1288 | | if (p == -1 && !closure.IsLocalVar(parExpr)) |
| | | 1289 | | { |
| | | 1290 | | if (nestedLambda == null) // means that we are in the root lambda |
| | | 1291 | | return Result.ParameterIsNotVariableNorInPassedParameters; |
| | | 1292 | | closure.Status |= ClosureStatus.HasClosure; |
| | | 1293 | | _ = nestedLambda.NonPassedParameters.GetIndexOrAdd(parExpr, default(RefEq<ParameterExpre |
| | | 1294 | | } |
| | | 1295 | | return Result.OK; |
| | | 1296 | | } |
| | | 1297 | | case ExpressionType.Call: |
| | | 1298 | | { |
| | | 1299 | | var callExpr = (MethodCallExpression)expr; |
| | | 1300 | | var callObjectExpr = callExpr.Object; |
| | | 1301 | | |
| | | 1302 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 1303 | | var callArgs = (IArgumentProvider)callExpr; |
| | | 1304 | | #else |
| | | 1305 | | var callArgs = callExpr.Arguments; |
| | | 1306 | | #endif |
| | | 1307 | | var argCount = callArgs.GetCount(); |
| | | 1308 | | if (argCount == 0) |
| | | 1309 | | { |
| | | 1310 | | if (callObjectExpr != null) |
| | | 1311 | | { |
| | | 1312 | | expr = callObjectExpr; |
| | | 1313 | | continue; |
| | | 1314 | | } |
| | | 1315 | | return Result.OK; |
| | | 1316 | | } |
| | | 1317 | | |
| | | 1318 | | if (callObjectExpr != null && |
| | | 1319 | | (r = TryCollectInfo(ref closure, callObjectExpr, paramExprs, nestedLambda, ref rootNeste |
| | | 1320 | | return r; |
| | | 1321 | | |
| | | 1322 | | var hasComplexExpression = false; |
| | | 1323 | | for (var i = 0; i < argCount; i++) |
| | | 1324 | | { |
| | | 1325 | | closure.HasComplexExpression = false; // reset the flag because we want to know the real |
| | | 1326 | | if ((r = TryCollectInfo(ref closure, callArgs.GetArgument(i), paramExprs, nestedLambda, |
| | | 1327 | | return r; |
| | | 1328 | | // if any argument is complex, then thw whole call should be complex, |
| | | 1329 | | // because we cannot just store and restore a single argument, it should be done for all |
| | | 1330 | | hasComplexExpression |= closure.HasComplexExpression; |
| | | 1331 | | } |
| | | 1332 | | |
| | | 1333 | | // propagate the value up the stack |
| | | 1334 | | if (hasComplexExpression) |
| | | 1335 | | { |
| | | 1336 | | closure.HasComplexExpression = true; |
| | | 1337 | | closure.ArgsContainingComplexExpression.Map.AddOrGetValueRef(callExpr, out _); |
| | | 1338 | | } |
| | | 1339 | | return r; |
| | | 1340 | | } |
| | | 1341 | | |
| | | 1342 | | case ExpressionType.MemberAccess: |
| | | 1343 | | var memberExpr = ((MemberExpression)expr).Expression; |
| | | 1344 | | if (memberExpr == null) |
| | | 1345 | | return r; |
| | | 1346 | | expr = memberExpr; |
| | | 1347 | | continue; |
| | | 1348 | | |
| | | 1349 | | case ExpressionType.New: |
| | | 1350 | | { |
| | | 1351 | | var newExpr = (NewExpression)expr; |
| | | 1352 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 1353 | | var ctorArgs = (IArgumentProvider)newExpr; |
| | | 1354 | | #else |
| | | 1355 | | var ctorArgs = newExpr.Arguments; |
| | | 1356 | | #endif |
| | | 1357 | | var argCount = ctorArgs.GetCount(); |
| | | 1358 | | if (argCount == 0) |
| | | 1359 | | return r; |
| | | 1360 | | |
| | | 1361 | | var hasComplexExpression = false; |
| | | 1362 | | for (var i = 0; i < argCount; i++) |
| | | 1363 | | { |
| | | 1364 | | closure.HasComplexExpression = false; |
| | | 1365 | | if ((r = TryCollectInfo(ref closure, ctorArgs.GetArgument(i), paramExprs, nestedLambda, |
| | | 1366 | | return r; |
| | | 1367 | | hasComplexExpression |= closure.HasComplexExpression; |
| | | 1368 | | } |
| | | 1369 | | |
| | | 1370 | | // pop the value up the stack |
| | | 1371 | | if (hasComplexExpression) |
| | | 1372 | | { |
| | | 1373 | | closure.HasComplexExpression = true; |
| | | 1374 | | closure.ArgsContainingComplexExpression.Map.AddOrGetEntryRef(newExpr, out _); |
| | | 1375 | | } |
| | | 1376 | | |
| | | 1377 | | return r; |
| | | 1378 | | } |
| | | 1379 | | case ExpressionType.NewArrayBounds: |
| | | 1380 | | case ExpressionType.NewArrayInit: |
| | | 1381 | | // todo: @feature multi-dimensional array initializers are not supported yet, they also are not |
| | | 1382 | | if (expr.NodeType == ExpressionType.NewArrayInit && expr.Type.GetArrayRank() > 1) |
| | | 1383 | | return Result.NotSupported_NewArrayInit_MultidimensionalArray; |
| | | 1384 | | #if LIGHT_EXPRESSION |
| | | 1385 | | var arrElems = (IArgumentProvider)expr; |
| | | 1386 | | var elemCount = arrElems.ArgumentCount; |
| | | 1387 | | #else |
| | | 1388 | | var arrElems = ((NewArrayExpression)expr).Expressions; |
| | | 1389 | | var elemCount = arrElems.Count; |
| | | 1390 | | #endif |
| | | 1391 | | if (elemCount == 0) |
| | | 1392 | | return r; |
| | | 1393 | | for (var i = 0; i < elemCount - 1; i++) |
| | | 1394 | | if ((r = TryCollectInfo(ref closure, arrElems.GetArgument(i), paramExprs, nestedLambda, ref |
| | | 1395 | | return r; |
| | | 1396 | | expr = arrElems.GetArgument(elemCount - 1); |
| | | 1397 | | continue; |
| | | 1398 | | |
| | | 1399 | | case ExpressionType.MemberInit: |
| | | 1400 | | return TryCollectMemberInitExprConstants( |
| | | 1401 | | ref closure, (MemberInitExpression)expr, paramExprs, nestedLambda, ref rootNestedLambdas, fl |
| | | 1402 | | |
| | | 1403 | | case ExpressionType.ListInit: |
| | | 1404 | | return TryCollectListInitExprConstants( |
| | | 1405 | | ref closure, (ListInitExpression)expr, paramExprs, nestedLambda, ref rootNestedLambdas, flag |
| | | 1406 | | |
| | | 1407 | | case ExpressionType.Lambda: |
| | | 1408 | | // Here we look if the lambda is already stored in the nested lambdas tree (Collected+Compiled), |
| | | 1409 | | // or if not found it Collects+Compiles the nested lambda here and adds to the nested lambda tre |
| | | 1410 | | var nestedLambdaExpr = (LambdaExpression)expr; |
| | | 1411 | | |
| | | 1412 | | #if LIGHT_EXPRESSION // todo: @simplify can we do better? |
| | | 1413 | | var nestedParamExprs = (IParameterProvider)nestedLambdaExpr; |
| | | 1414 | | #else |
| | | 1415 | | var nestedParamExprs = nestedLambdaExpr.Parameters; |
| | | 1416 | | #endif |
| | | 1417 | | closure.Status |= ClosureStatus.HasClosure; |
| | | 1418 | | |
| | | 1419 | | // Look for the already collected lambdas starting from the root |
| | | 1420 | | if (rootNestedLambdas.Count != 0 && |
| | | 1421 | | FindAlreadyCompiledNestedLambdaInfoInLambdas(ref rootNestedLambdas, nestedLambdaExpr, out va |
| | | 1422 | | { |
| | | 1423 | | if (nestedLambda != null) |
| | | 1424 | | nestedLambda.NestedLambdas.Add(compiledNestedLambda); |
| | | 1425 | | else |
| | | 1426 | | rootNestedLambdas.Add(compiledNestedLambda); |
| | | 1427 | | |
| | | 1428 | | if (compiledNestedLambda.NonPassedParameters.Count != 0 && |
| | | 1429 | | !PropagateNonPassedParamsToOuterLambda(ref closure, |
| | | 1430 | | nestedLambda, paramExprs, nestedParamExprs, ref compiledNestedLambda.NonPassedParame |
| | | 1431 | | return Result.ParameterIsNotVariableNorInPassedParameters; |
| | | 1432 | | |
| | | 1433 | | return r; |
| | | 1434 | | } |
| | | 1435 | | |
| | | 1436 | | var nestedClosure = new ClosureInfo(ClosureStatus.ToBeCollected); |
| | | 1437 | | var newNestedLambda = new NestedLambdaInfo(nestedLambdaExpr); |
| | | 1438 | | |
| | | 1439 | | if (nestedLambda != null) |
| | | 1440 | | nestedLambda.NestedLambdas.Add(newNestedLambda); |
| | | 1441 | | else |
| | | 1442 | | rootNestedLambdas.Add(newNestedLambda); |
| | | 1443 | | |
| | | 1444 | | if ((r = TryCollectInfo(ref nestedClosure, nestedLambdaExpr.Body, nestedParamExprs, newNestedLam |
| | | 1445 | | return r; |
| | | 1446 | | |
| | | 1447 | | if (newNestedLambda.NonPassedParameters.Count != 0 && |
| | | 1448 | | !PropagateNonPassedParamsToOuterLambda(ref closure, |
| | | 1449 | | nestedLambda, paramExprs, nestedParamExprs, ref newNestedLambda.NonPassedParameters)) |
| | | 1450 | | return Result.ParameterIsNotVariableNorInPassedParameters; |
| | | 1451 | | |
| | | 1452 | | if (!TryCompileNestedLambda(ref nestedClosure, newNestedLambda, flags)) |
| | | 1453 | | return Result.NestedLambdaCompileError; |
| | | 1454 | | |
| | | 1455 | | return r; |
| | | 1456 | | |
| | | 1457 | | case ExpressionType.Invoke: |
| | | 1458 | | { |
| | | 1459 | | var invokeExpr = (InvocationExpression)expr; |
| | | 1460 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 1461 | | var invokeArgs = (IArgumentProvider)invokeExpr; |
| | | 1462 | | #else |
| | | 1463 | | var invokeArgs = invokeExpr.Arguments; |
| | | 1464 | | #endif |
| | | 1465 | | var invokeArgCount = invokeArgs.GetCount(); |
| | | 1466 | | var invokedExpr = invokeExpr.Expression; |
| | | 1467 | | if ((flags & CompilerFlags.NoInvocationLambdaInlining) == 0 && invokedExpr is LambdaExpressi |
| | | 1468 | | { |
| | | 1469 | | var oldIndex = closure.CurrentInlinedLambdaInvokeIndex; |
| | | 1470 | | closure.CurrentInlinedLambdaInvokeIndex = closure.AddInlinedLambdaInvoke(invokeExpr); |
| | | 1471 | | closure.HasComplexExpression = false; // switch off because we have entered the inlined |
| | | 1472 | | |
| | | 1473 | | ref var inlinedExpr = ref closure.InlinedLambdaInvocation.Map.AddOrGetValueRef(invokeExp |
| | | 1474 | | if (!found) |
| | | 1475 | | inlinedExpr = CreateInlinedLambdaInvocationExpression(invokeArgs, invokeArgCount, la |
| | | 1476 | | |
| | | 1477 | | if ((r = TryCollectInfo(ref closure, inlinedExpr, paramExprs, nestedLambda, ref rootNest |
| | | 1478 | | return r; |
| | | 1479 | | |
| | | 1480 | | closure.HasComplexExpression = true; |
| | | 1481 | | closure.CurrentInlinedLambdaInvokeIndex = oldIndex; |
| | | 1482 | | return r; |
| | | 1483 | | } |
| | | 1484 | | |
| | | 1485 | | // No inlining, collect the normal way |
| | | 1486 | | if (invokeArgCount == 0) |
| | | 1487 | | { |
| | | 1488 | | expr = invokedExpr; |
| | | 1489 | | continue; |
| | | 1490 | | } |
| | | 1491 | | |
| | | 1492 | | if ((r = TryCollectInfo(ref closure, invokedExpr, paramExprs, nestedLambda, ref rootNestedLa |
| | | 1493 | | return r; |
| | | 1494 | | |
| | | 1495 | | var lastArgIndex = invokeArgCount - 1; |
| | | 1496 | | for (var i = 0; i < lastArgIndex; i++) |
| | | 1497 | | if ((r = TryCollectInfo(ref closure, invokeArgs.GetArgument(i), paramExprs, nestedLambda |
| | | 1498 | | return r; |
| | | 1499 | | expr = invokeArgs.GetArgument(lastArgIndex); |
| | | 1500 | | continue; |
| | | 1501 | | } |
| | | 1502 | | case ExpressionType.Conditional: |
| | | 1503 | | var condExpr = (ConditionalExpression)expr; |
| | | 1504 | | if ((r = TryCollectInfo(ref closure, condExpr.Test, paramExprs, nestedLambda, ref rootNestedLamb |
| | | 1505 | | (r = TryCollectInfo(ref closure, condExpr.IfFalse, paramExprs, nestedLambda, ref rootNestedL |
| | | 1506 | | return r; |
| | | 1507 | | expr = condExpr.IfTrue; |
| | | 1508 | | continue; |
| | | 1509 | | |
| | | 1510 | | case ExpressionType.Block: |
| | | 1511 | | var blockExpr = (BlockExpression)expr; |
| | | 1512 | | var blockExprs = blockExpr.Expressions; |
| | | 1513 | | var blockExprCount = blockExprs.Count; |
| | | 1514 | | if (blockExprCount == 0) |
| | | 1515 | | return r; // yeah, this is the real case - the block may not contain any expressions |
| | | 1516 | | |
| | | 1517 | | var varExprs = blockExpr.Variables; |
| | | 1518 | | var varExprCount = varExprs?.Count ?? 0; // todo: @perf optimize for an empty and a single varia |
| | | 1519 | | |
| | | 1520 | | if (varExprCount == 1 & blockExprCount == 2 && |
| | | 1521 | | blockExprs[0] is BinaryExpression st0 && st0.NodeType == ExpressionType.Assign && |
| | | 1522 | | blockExprs[1] is BinaryExpression st1 && st1.NodeType == ExpressionType.Assign && |
| | | 1523 | | st0.Left == blockExprs[0] && st1.Right == blockExprs[0]) |
| | | 1524 | | { |
| | | 1525 | | if ((r = TryCollectInfo(ref closure, st0.Right, paramExprs, nestedLambda, ref rootNestedLamb |
| | | 1526 | | return r; |
| | | 1527 | | expr = st1.Left; |
| | | 1528 | | continue; |
| | | 1529 | | } |
| | | 1530 | | |
| | | 1531 | | if (varExprCount == 1) |
| | | 1532 | | closure.PushBlockWithVars(varExprs[0]); |
| | | 1533 | | else if (varExprCount != 0) |
| | | 1534 | | closure.PushBlockWithVars(varExprs); |
| | | 1535 | | |
| | | 1536 | | for (var i = 0; i < blockExprCount - 1; i++) |
| | | 1537 | | if ((r = TryCollectInfo(ref closure, blockExprs[i], paramExprs, nestedLambda, ref rootNested |
| | | 1538 | | return r; |
| | | 1539 | | |
| | | 1540 | | expr = blockExprs[blockExprCount - 1]; |
| | | 1541 | | if (varExprCount == 0) |
| | | 1542 | | continue; // in case of no variables we can collect the last expr without recursion |
| | | 1543 | | |
| | | 1544 | | if ((r = TryCollectInfo(ref closure, expr, paramExprs, nestedLambda, ref rootNestedLambdas, flag |
| | | 1545 | | return r; |
| | | 1546 | | closure.PopBlock(); |
| | | 1547 | | return r; |
| | | 1548 | | |
| | | 1549 | | case ExpressionType.Loop: |
| | | 1550 | | var loopExpr = (LoopExpression)expr; |
| | | 1551 | | closure.AddLabel(loopExpr.BreakLabel); |
| | | 1552 | | closure.AddLabel(loopExpr.ContinueLabel); |
| | | 1553 | | expr = loopExpr.Body; |
| | | 1554 | | continue; |
| | | 1555 | | |
| | | 1556 | | case ExpressionType.Index: |
| | | 1557 | | var indexExpr = (IndexExpression)expr; |
| | | 1558 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 1559 | | var indexArgs = (IArgumentProvider)indexExpr; |
| | | 1560 | | #else |
| | | 1561 | | var indexArgs = indexExpr.Arguments; |
| | | 1562 | | #endif |
| | | 1563 | | var indexArgCount = indexArgs.GetCount(); |
| | | 1564 | | for (var i = 0; i < indexArgCount; i++) |
| | | 1565 | | if ((r = TryCollectInfo(ref closure, indexArgs.GetArgument(i), paramExprs, nestedLambda, ref |
| | | 1566 | | return r; |
| | | 1567 | | if (indexExpr.Object == null) |
| | | 1568 | | return r; |
| | | 1569 | | expr = indexExpr.Object; |
| | | 1570 | | continue; |
| | | 1571 | | |
| | | 1572 | | case ExpressionType.Try: |
| | | 1573 | | { |
| | | 1574 | | closure.HasComplexExpression = false; |
| | | 1575 | | r = TryCollectTryExprInfo(ref closure, (TryExpression)expr, paramExprs, nestedLambda, ref ro |
| | | 1576 | | closure.HasComplexExpression = true; |
| | | 1577 | | return r; |
| | | 1578 | | } |
| | | 1579 | | case ExpressionType.Label: |
| | | 1580 | | var labelExpr = (LabelExpression)expr; |
| | | 1581 | | closure.AddLabel(labelExpr.Target, closure.CurrentInlinedLambdaInvokeIndex); |
| | | 1582 | | if (labelExpr.Target != null) |
| | | 1583 | | closure.TargetToGotosAndLabels.Map.AddOrGetValueRef(labelExpr.Target, out _).Item2++; |
| | | 1584 | | if (labelExpr.DefaultValue == null) |
| | | 1585 | | return r; |
| | | 1586 | | expr = labelExpr.DefaultValue; |
| | | 1587 | | continue; |
| | | 1588 | | |
| | | 1589 | | case ExpressionType.Goto: |
| | | 1590 | | var gotoExpr = (GotoExpression)expr; |
| | | 1591 | | if (gotoExpr.Target != null) |
| | | 1592 | | closure.TargetToGotosAndLabels.Map.AddOrGetValueRef(gotoExpr.Target, out _).Item1++; |
| | | 1593 | | if (gotoExpr.Value == null) |
| | | 1594 | | return r; |
| | | 1595 | | expr = gotoExpr.Value; |
| | | 1596 | | continue; |
| | | 1597 | | |
| | | 1598 | | case ExpressionType.Switch: |
| | | 1599 | | var switchExpr = ((SwitchExpression)expr); |
| | | 1600 | | if ((r = TryCollectInfo(ref closure, switchExpr.SwitchValue, paramExprs, nestedLambda, ref rootN |
| | | 1601 | | switchExpr.DefaultBody != null && // todo: @check is the order of collection affects the res |
| | | 1602 | | (r = TryCollectInfo(ref closure, switchExpr.DefaultBody, paramExprs, nestedLambda, ref rootN |
| | | 1603 | | return r; |
| | | 1604 | | |
| | | 1605 | | var switchCases = switchExpr.Cases; |
| | | 1606 | | if (switchCases.Count != 0) |
| | | 1607 | | { |
| | | 1608 | | for (var i = 0; i < switchCases.Count - 1; i++) |
| | | 1609 | | if ((r = TryCollectInfo(ref closure, switchCases[i].Body, paramExprs, nestedLambda, ref |
| | | 1610 | | return r; |
| | | 1611 | | expr = switchCases[switchCases.Count - 1].Body; |
| | | 1612 | | continue; |
| | | 1613 | | } |
| | | 1614 | | return r; |
| | | 1615 | | |
| | | 1616 | | case ExpressionType.Extension: |
| | | 1617 | | expr = expr.Reduce(); |
| | | 1618 | | continue; |
| | | 1619 | | |
| | | 1620 | | case ExpressionType.Default: |
| | | 1621 | | return r; |
| | | 1622 | | |
| | | 1623 | | case ExpressionType.TypeIs: |
| | | 1624 | | case ExpressionType.TypeEqual: |
| | | 1625 | | expr = ((TypeBinaryExpression)expr).Expression; |
| | | 1626 | | continue; |
| | | 1627 | | |
| | | 1628 | | case ExpressionType.Quote: // todo: @feature - is not supported yet |
| | | 1629 | | return Result.NotSupported_Quote; |
| | | 1630 | | case ExpressionType.Dynamic: // todo: @feature - is not supported yet |
| | | 1631 | | return Result.NotSupported_Dynamic; |
| | | 1632 | | case ExpressionType.RuntimeVariables: // todo: @feature - is not supported yet |
| | | 1633 | | return NotSupported_RuntimeVariables; |
| | | 1634 | | |
| | | 1635 | | case ExpressionType.DebugInfo: // todo: @feature - is not supported yet |
| | | 1636 | | return r; // todo: @unclear - just ignoring the info for now |
| | | 1637 | | |
| | | 1638 | | default: |
| | | 1639 | | if (expr is UnaryExpression unaryExpr) |
| | | 1640 | | { |
| | | 1641 | | if (unaryExpr.Operand is null) |
| | | 1642 | | return r; |
| | | 1643 | | expr = unaryExpr.Operand; |
| | | 1644 | | continue; |
| | | 1645 | | } |
| | | 1646 | | |
| | | 1647 | | if (expr is BinaryExpression binaryExpr) |
| | | 1648 | | { |
| | | 1649 | | if ((r = TryCollectInfo(ref closure, binaryExpr.Left, paramExprs, nestedLambda, ref rootNest |
| | | 1650 | | return r; |
| | | 1651 | | expr = binaryExpr.Right; |
| | | 1652 | | continue; |
| | | 1653 | | } |
| | | 1654 | | |
| | | 1655 | | return Result.NotSupported_UnknownExpression; |
| | | 1656 | | } |
| | | 1657 | | } |
| | | 1658 | | } |
| | | 1659 | | |
| | | 1660 | | private static Expression CreateInlinedLambdaInvocationExpression( |
| | | 1661 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 1662 | | IArgumentProvider invokeArgs, |
| | | 1663 | | #else |
| | | 1664 | | IReadOnlyList<Expression> invokeArgs, |
| | | 1665 | | #endif |
| | | 1666 | | int invokeArgCount, LambdaExpression lambdaExpr) |
| | | 1667 | | { |
| | | 1668 | | // Check the actual lambda return type in case it differs from the Body type, |
| | | 1669 | | // e.g. often case for the Action lambdas where the Body type is ignored in favor of `void`. |
| | | 1670 | | var lambdaReturnType = lambdaExpr.ReturnType; |
| | | 1671 | | var lambdaBodyExpr = lambdaExpr.Body; |
| | | 1672 | | if (invokeArgCount == 0) |
| | | 1673 | | return lambdaReturnType == lambdaBodyExpr.Type ? lambdaBodyExpr : |
| | | 1674 | | lambdaReturnType == typeof(void) ? Block(typeof(void), lambdaBodyExpr) : |
| | | 1675 | | Convert(lambdaBodyExpr, lambdaReturnType); |
| | | 1676 | | |
| | | 1677 | | // To inline the lambda we will wrap its body into a block, parameters into the block variables, |
| | | 1678 | | // and the invocation arguments into the variable assignments, see #278. |
| | | 1679 | | #if LIGHT_EXPRESSION |
| | | 1680 | | var lambdaPars = (IParameterProvider)lambdaExpr; |
| | | 1681 | | #else |
| | | 1682 | | var lambdaPars = lambdaExpr.Parameters; |
| | | 1683 | | #endif |
| | | 1684 | | SmallList<Expression, Stack2<Expression>> inlinedBlockExprs = default; |
| | | 1685 | | SmallList<ParameterExpression, Stack2<ParameterExpression>> savedVars = default; |
| | | 1686 | | SmallList<Expression, Stack2<Expression>> savedVarsBlockExprs = default; |
| | | 1687 | | |
| | | 1688 | | for (var i = 0; i < invokeArgCount; i++) |
| | | 1689 | | { |
| | | 1690 | | var lambdaPar = lambdaPars.GetParameter(i); |
| | | 1691 | | var invokeArg = invokeArgs.GetArgument(i); |
| | | 1692 | | |
| | | 1693 | | // The case of reusing the parameters or variables in the different lambdas, |
| | | 1694 | | // see the test `NestedLambdaTests.Hmm_I_can_use_the_same_parameter_for_outer_and_nested_lambda` |
| | | 1695 | | // and the `Issue401_What_happens_if_inlined_invocation_of_lambda_overrides_the_same_parameter`. |
| | | 1696 | | if (lambdaPar == invokeArg) |
| | | 1697 | | { |
| | | 1698 | | var savedPar = Parameter(lambdaPar.Type, lambdaPar.Name + "_" + lambdaPar.GetHashCode().ToString()); |
| | | 1699 | | savedVars.Add(savedPar); |
| | | 1700 | | savedVarsBlockExprs.Add(Assign(savedPar, invokeArg)); |
| | | 1701 | | inlinedBlockExprs.Add(Assign(lambdaPar, savedPar)); |
| | | 1702 | | continue; |
| | | 1703 | | } |
| | | 1704 | | |
| | | 1705 | | inlinedBlockExprs.Add(Assign(lambdaPar, invokeArg)); |
| | | 1706 | | } |
| | | 1707 | | |
| | | 1708 | | inlinedBlockExprs.Add(lambdaBodyExpr); |
| | | 1709 | | |
| | | 1710 | | #if LIGHT_EXPRESSION |
| | | 1711 | | var inlinedBlock = lambdaReturnType == lambdaBodyExpr.Type |
| | | 1712 | | ? Block(lambdaPars.ToReadOnlyList(), in inlinedBlockExprs) |
| | | 1713 | | : Block(lambdaReturnType, lambdaPars.ToReadOnlyList(), in inlinedBlockExprs); |
| | | 1714 | | if (savedVars.Count != 0) |
| | | 1715 | | { |
| | | 1716 | | savedVarsBlockExprs.Add(inlinedBlock); |
| | | 1717 | | inlinedBlock = Block(savedVars.ToArray(), in savedVarsBlockExprs); |
| | | 1718 | | } |
| | | 1719 | | #else |
| | | 1720 | | var inlinedBlock = lambdaReturnType == lambdaBodyExpr.Type |
| | | 1721 | | ? Block(lambdaPars, inlinedBlockExprs.ToArray()) |
| | | 1722 | | : Block(lambdaReturnType, lambdaPars, inlinedBlockExprs.ToArray()); |
| | | 1723 | | if (savedVars.Count != 0) |
| | | 1724 | | { |
| | | 1725 | | savedVarsBlockExprs.Add(inlinedBlock); |
| | | 1726 | | inlinedBlock = Block(savedVars.ToArray(), savedVarsBlockExprs.ToArray()); |
| | | 1727 | | } |
| | | 1728 | | #endif |
| | | 1729 | | return inlinedBlock; |
| | | 1730 | | } |
| | | 1731 | | |
| | | 1732 | | #if LIGHT_EXPRESSION |
| | | 1733 | | private static bool PropagateNonPassedParamsToOuterLambda(ref ClosureInfo closure, NestedLambdaInfo lambda, |
| | | 1734 | | IParameterProvider paramExprs, IParameterProvider nestedLambdaParamExprs, ref SmallList<ParameterExpression> |
| | | 1735 | | { |
| | | 1736 | | var paramExprCount = paramExprs.ParameterCount; |
| | | 1737 | | var nestedLambdaParamExprCount = nestedLambdaParamExprs.ParameterCount; |
| | | 1738 | | #else |
| | | 1739 | | private static bool PropagateNonPassedParamsToOuterLambda(ref ClosureInfo closure, NestedLambdaInfo lambda, |
| | | 1740 | | IReadOnlyList<PE> paramExprs, IReadOnlyList<PE> nestedLambdaParamExprs, ref SmallList<ParameterExpression> n |
| | | 1741 | | { |
| | | 1742 | | var paramExprCount = paramExprs.Count; |
| | | 1743 | | var nestedLambdaParamExprCount = nestedLambdaParamExprs.Count; |
| | | 1744 | | #endif |
| | | 1745 | | // If nested non passed parameter is not matched with any outer passed parameter, |
| | | 1746 | | // then we ensure it goes to the outer non passed parameter. |
| | | 1747 | | // But having the non-passed parameter in the root expression (nestedLambda == null) is invalid, and results |
| | | 1748 | | for (var i = 0; i < nestedNonPassedParams.Count; i++) |
| | | 1749 | | { |
| | | 1750 | | var nestedNonPassedParam = nestedNonPassedParams.GetSurePresentItemRef(i); |
| | | 1751 | | |
| | | 1752 | | var isInNestedLambda = false; |
| | | 1753 | | if (nestedLambdaParamExprCount != 0) |
| | | 1754 | | for (var p = 0; !isInNestedLambda && p < nestedLambdaParamExprCount; ++p) |
| | | 1755 | | isInNestedLambda = ReferenceEquals(nestedLambdaParamExprs.GetParameter(p), nestedNonPassedParam) |
| | | 1756 | | |
| | | 1757 | | var isInLambda = false; |
| | | 1758 | | if (paramExprCount != 0) |
| | | 1759 | | for (var p = 0; !isInLambda && p < paramExprCount; ++p) |
| | | 1760 | | isInLambda = ReferenceEquals(paramExprs.GetParameter(p), nestedNonPassedParam); |
| | | 1761 | | |
| | | 1762 | | if (!isInNestedLambda & !isInLambda) |
| | | 1763 | | { |
| | | 1764 | | if (closure.IsLocalVar(nestedNonPassedParam)) |
| | | 1765 | | continue; |
| | | 1766 | | if (lambda == null) // means that we at the root level lambda, and non-passed parameter cannot be pr |
| | | 1767 | | return false; |
| | | 1768 | | _ = lambda.NonPassedParameters.GetIndexOrAdd(nestedNonPassedParam, default(RefEq<ParameterExpression |
| | | 1769 | | } |
| | | 1770 | | } |
| | | 1771 | | |
| | | 1772 | | return true; |
| | | 1773 | | } |
| | | 1774 | | |
| | | 1775 | | private static bool FindAlreadyCompiledNestedLambdaInfoInLambdas( |
| | | 1776 | | ref SmallList<NestedLambdaInfo> nestedLambdas, LambdaExpression lambdaExpr, out NestedLambdaInfo found) |
| | | 1777 | | { |
| | | 1778 | | var nestedLambdasCount = nestedLambdas.Count; |
| | | 1779 | | for (var i = 0; i < nestedLambdasCount; ++i) |
| | | 1780 | | { |
| | | 1781 | | var nestedLambda = nestedLambdas.Items[i]; |
| | | 1782 | | if (nestedLambda.HasTheSameLambdaExpression(lambdaExpr)) |
| | | 1783 | | { |
| | | 1784 | | found = nestedLambda; |
| | | 1785 | | return true; |
| | | 1786 | | } |
| | | 1787 | | |
| | | 1788 | | if (nestedLambda.NestedLambdas.Count != 0) |
| | | 1789 | | return FindAlreadyCompiledNestedLambdaInfoInLambdas(ref nestedLambda.NestedLambdas, lambdaExpr, out |
| | | 1790 | | } |
| | | 1791 | | |
| | | 1792 | | found = null; |
| | | 1793 | | return false; |
| | | 1794 | | } |
| | | 1795 | | |
| | | 1796 | | private static bool TryCompileNestedLambda(ref ClosureInfo nestedClosureInfo, NestedLambdaInfo nestedLambdaInfo, |
| | | 1797 | | { |
| | | 1798 | | // 1. Try to compile nested lambda in place |
| | | 1799 | | // 2. Check that parameters used in compiled lambda are passed or closed by outer lambda |
| | | 1800 | | // 3. Add the compiled lambda to closure of outer lambda for later invocation |
| | | 1801 | | var nestedLambdaExpr = nestedLambdaInfo.LambdaExpression; |
| | | 1802 | | var nestedReturnType = nestedLambdaExpr.ReturnType; |
| | | 1803 | | var nestedLambdaBody = nestedLambdaExpr.Body; |
| | | 1804 | | #if LIGHT_EXPRESSION |
| | | 1805 | | var nestedLambdaParamExprs = (IParameterProvider)nestedLambdaExpr; |
| | | 1806 | | |
| | | 1807 | | if (nestedLambdaBody is NoArgsNewClassIntrinsicExpression newExpr) |
| | | 1808 | | { |
| | | 1809 | | var paramTypes = RentPooledOrNewClosureTypeToParamTypes(nestedLambdaParamExprs); |
| | | 1810 | | nestedLambdaInfo.Lambda = CompileNoArgsNew(newExpr, nestedLambdaExpr.Type, paramTypes, nestedReturnType, |
| | | 1811 | | FreePooledClosureTypeAndParamTypes(paramTypes); |
| | | 1812 | | return true; |
| | | 1813 | | } |
| | | 1814 | | #else |
| | | 1815 | | var nestedLambdaParamExprs = nestedLambdaExpr.Parameters; |
| | | 1816 | | #endif |
| | | 1817 | | // copy the nested lambdas and non-passed parameters to closure info to read them in TryEmit |
| | | 1818 | | nestedClosureInfo.NestedLambdas = nestedLambdaInfo.NestedLambdas; |
| | | 1819 | | nestedClosureInfo.NonPassedParameters = nestedLambdaInfo.NonPassedParameters; |
| | | 1820 | | |
| | | 1821 | | var constantsAndNestedLambdas = (nestedClosureInfo.Status & ClosureStatus.HasClosure) != 0 |
| | | 1822 | | ? nestedClosureInfo.GetArrayOfConstantsAndNestedLambdas() |
| | | 1823 | | : null; |
| | | 1824 | | |
| | | 1825 | | ArrayClosure nestedLambdaClosure = null; |
| | | 1826 | | var hasDebugInfo = (flags & CompilerFlags.EnableDelegateDebugInfo) != 0; |
| | | 1827 | | var hasNonPassedParameters = nestedLambdaInfo.NonPassedParameters.Count != 0; |
| | | 1828 | | if (!hasNonPassedParameters) |
| | | 1829 | | nestedLambdaClosure = !hasDebugInfo |
| | | 1830 | | ? (constantsAndNestedLambdas == null ? EmptyArrayClosure : new ArrayClosure(constantsAndNestedLambda |
| | | 1831 | | : new DebugArrayClosure(null, constantsAndNestedLambdas, nestedLambdaExpr); |
| | | 1832 | | |
| | | 1833 | | var closurePlusParamTypes = RentPooledOrNewClosureTypeToParamTypes(nestedLambdaParamExprs); |
| | | 1834 | | |
| | | 1835 | | var method = new DynamicMethod(string.Empty, nestedReturnType, closurePlusParamTypes, typeof(ArrayClosure), |
| | | 1836 | | var il = DynamicMethodHacks.RentPooledOrNewILGenerator(method, nestedReturnType, closurePlusParamTypes); |
| | | 1837 | | |
| | | 1838 | | if (constantsAndNestedLambdas != null) |
| | | 1839 | | EmittingVisitor.EmitLoadConstantsAndNestedLambdasIntoVars(il, ref nestedClosureInfo); |
| | | 1840 | | |
| | | 1841 | | var parent = nestedReturnType == typeof(void) ? ParentFlags.IgnoreResult : ParentFlags.LambdaCall; |
| | | 1842 | | if (nestedReturnType.IsByRef) |
| | | 1843 | | parent |= ParentFlags.ReturnByRef; |
| | | 1844 | | |
| | | 1845 | | var emitOk = EmittingVisitor.TryEmit(nestedLambdaBody, nestedLambdaParamExprs, il, ref nestedClosureInfo, fl |
| | | 1846 | | if (emitOk) |
| | | 1847 | | { |
| | | 1848 | | il.Demit(OpCodes.Ret); |
| | | 1849 | | |
| | | 1850 | | // If we don't have closure then create a static or an open delegate to pass closure later in `TryEmitNe |
| | | 1851 | | // constructing the new closure with NonPassedParams and the rest of items stored in NestedLambdaWithCon |
| | | 1852 | | var nestedLambda = nestedLambdaClosure != null |
| | | 1853 | | ? method.CreateDelegate(nestedLambdaExpr.Type, nestedLambdaClosure) |
| | | 1854 | | : method.CreateDelegate(Tools.GetFuncOrActionType(closurePlusParamTypes, nestedReturnType), null); |
| | | 1855 | | |
| | | 1856 | | nestedLambdaInfo.Lambda = !hasNonPassedParameters |
| | | 1857 | | ? nestedLambda |
| | | 1858 | | : !hasDebugInfo |
| | | 1859 | | ? constantsAndNestedLambdas == null |
| | | 1860 | | ? new NestedLambdaForNonPassedParams(nestedLambda) |
| | | 1861 | | : new NestedLambdaForNonPassedParamsWithConstants(nestedLambda, constantsAndNestedLambdas) |
| | | 1862 | | : new NestedLambdaForNonPassedParamsWithConstantsWithDebugInfo(nestedLambda, constantsAndNestedL |
| | | 1863 | | |
| | | 1864 | | if (hasDebugInfo) |
| | | 1865 | | { |
| | | 1866 | | var ilInstructions = nestedLambda.Method.ReadAllInstructions(); |
| | | 1867 | | if (nestedLambdaClosure is DebugArrayClosure debugInfoClosure) |
| | | 1868 | | debugInfoClosure.ILInstructions = ilInstructions; |
| | | 1869 | | else |
| | | 1870 | | ((NestedLambdaForNonPassedParamsWithConstantsWithDebugInfo)nestedLambdaInfo.Lambda).ILInstructio |
| | | 1871 | | } |
| | | 1872 | | } |
| | | 1873 | | DynamicMethodHacks.FreePooledILGenerator(method, il); |
| | | 1874 | | FreePooledClosureTypeAndParamTypes(closurePlusParamTypes); |
| | | 1875 | | return emitOk; |
| | | 1876 | | } |
| | | 1877 | | |
| | | 1878 | | /// <summary>Return IDelegateDebugInfo if the delegate is fast compiled with `CompilerFlags.EnableDelegateDebugI |
| | | 1879 | | public static IDelegateDebugInfo TryGetDebugInfo<TDelegate>(this TDelegate d) |
| | | 1880 | | where TDelegate : Delegate => d?.Target as IDelegateDebugInfo; |
| | | 1881 | | |
| | | 1882 | | #if LIGHT_EXPRESSION |
| | | 1883 | | private static Result TryCollectMemberInitExprConstants(ref ClosureInfo closure, MemberInitExpression expr, |
| | | 1884 | | IParameterProvider paramExprs, NestedLambdaInfo nestedLambda, ref SmallList<NestedLambdaInfo> rootNestedLamb |
| | | 1885 | | { |
| | | 1886 | | var newExpr = expr.Expression; |
| | | 1887 | | var binds = (IArgumentProvider<MemberBinding>)expr; |
| | | 1888 | | var count = binds.ArgumentCount; |
| | | 1889 | | #else |
| | | 1890 | | private static Result TryCollectMemberInitExprConstants(ref ClosureInfo closure, MemberInitExpression expr, |
| | | 1891 | | IReadOnlyList<PE> paramExprs, NestedLambdaInfo nestedLambda, ref SmallList<NestedLambdaInfo> rootNestedLambd |
| | | 1892 | | { |
| | | 1893 | | var newExpr = expr.NewExpression; |
| | | 1894 | | var binds = expr.Bindings; |
| | | 1895 | | var count = binds.Count; |
| | | 1896 | | #endif |
| | | 1897 | | var r = Result.OK; |
| | | 1898 | | if ((r = TryCollectInfo(ref closure, newExpr, paramExprs, nestedLambda, ref rootNestedLambdas, flags)) != Re |
| | | 1899 | | return r; |
| | | 1900 | | |
| | | 1901 | | for (var i = 0; i < count; ++i) |
| | | 1902 | | { |
| | | 1903 | | var b = binds.GetArgument(i); |
| | | 1904 | | if (b.BindingType != MemberBindingType.Assignment) |
| | | 1905 | | return b.BindingType == MemberBindingType.MemberBinding ? Result.NotSupported_MemberInit_MemberBindi |
| | | 1906 | | |
| | | 1907 | | if ((r = TryCollectInfo(ref closure, ((MemberAssignment)b).Expression, paramExprs, nestedLambda, ref roo |
| | | 1908 | | return r; |
| | | 1909 | | } |
| | | 1910 | | return r; |
| | | 1911 | | } |
| | | 1912 | | |
| | | 1913 | | private static Result TryCollectListInitExprConstants(ref ClosureInfo closure, ListInitExpression expr, |
| | | 1914 | | #if LIGHT_EXPRESSION |
| | | 1915 | | IParameterProvider paramExprs, |
| | | 1916 | | #else |
| | | 1917 | | IReadOnlyList<PE> paramExprs, |
| | | 1918 | | #endif |
| | | 1919 | | NestedLambdaInfo nestedLambda, ref SmallList<NestedLambdaInfo> rootNestedLambdas, CompilerFlags flags) |
| | | 1920 | | { |
| | | 1921 | | var newExpr = expr.NewExpression; |
| | | 1922 | | var inits = expr.Initializers; |
| | | 1923 | | var count = inits.Count; |
| | | 1924 | | |
| | | 1925 | | var r = Result.OK; |
| | | 1926 | | if ((r = TryCollectInfo(ref closure, newExpr, paramExprs, nestedLambda, ref rootNestedLambdas, flags)) != Re |
| | | 1927 | | return r; |
| | | 1928 | | |
| | | 1929 | | for (var i = 0; i < count; ++i) |
| | | 1930 | | { |
| | | 1931 | | var elemInit = inits.GetArgument(i); |
| | | 1932 | | var args = elemInit.Arguments; |
| | | 1933 | | var argCount = args.Count; |
| | | 1934 | | for (var a = 0; a < argCount; ++a) |
| | | 1935 | | if ((r = TryCollectInfo(ref closure, args.GetArgument(a), paramExprs, nestedLambda, ref rootNestedLa |
| | | 1936 | | return r; |
| | | 1937 | | } |
| | | 1938 | | return r; |
| | | 1939 | | } |
| | | 1940 | | |
| | | 1941 | | private static Result TryCollectTryExprInfo(ref ClosureInfo closure, TryExpression tryExpr, |
| | | 1942 | | #if LIGHT_EXPRESSION |
| | | 1943 | | IParameterProvider paramExprs, |
| | | 1944 | | #else |
| | | 1945 | | IReadOnlyList<PE> paramExprs, |
| | | 1946 | | #endif |
| | | 1947 | | NestedLambdaInfo nestedLambda, ref SmallList<NestedLambdaInfo> rootNestedLambdas, CompilerFlags flags) |
| | | 1948 | | { |
| | | 1949 | | var r = Result.OK; |
| | | 1950 | | if ((r = TryCollectInfo(ref closure, tryExpr.Body, paramExprs, nestedLambda, ref rootNestedLambdas, flags)) |
| | | 1951 | | return r; |
| | | 1952 | | |
| | | 1953 | | var catchBlocks = tryExpr.Handlers; |
| | | 1954 | | for (var i = 0; i < catchBlocks.Count; i++) |
| | | 1955 | | { |
| | | 1956 | | var catchBlock = catchBlocks[i]; |
| | | 1957 | | var catchExVar = catchBlock.Variable; |
| | | 1958 | | if (catchExVar != null) |
| | | 1959 | | { |
| | | 1960 | | closure.PushBlockWithVars(catchExVar); |
| | | 1961 | | if ((r = TryCollectInfo(ref closure, catchExVar, paramExprs, nestedLambda, ref rootNestedLambdas, fl |
| | | 1962 | | return r; |
| | | 1963 | | } |
| | | 1964 | | |
| | | 1965 | | if (catchBlock.Filter != null && |
| | | 1966 | | (r = TryCollectInfo(ref closure, catchBlock.Filter, paramExprs, nestedLambda, ref rootNestedLambdas, |
| | | 1967 | | return r; |
| | | 1968 | | |
| | | 1969 | | if ((r = TryCollectInfo(ref closure, catchBlock.Body, paramExprs, nestedLambda, ref rootNestedLambdas, f |
| | | 1970 | | return r; |
| | | 1971 | | |
| | | 1972 | | if (catchExVar != null) |
| | | 1973 | | closure.PopBlock(); |
| | | 1974 | | } |
| | | 1975 | | |
| | | 1976 | | var faultOrFinally = tryExpr.Fault ?? tryExpr.Finally; |
| | | 1977 | | if (faultOrFinally != null && |
| | | 1978 | | (r = TryCollectInfo(ref closure, faultOrFinally, paramExprs, nestedLambda, ref rootNestedLambdas, flags) |
| | | 1979 | | return r; |
| | | 1980 | | |
| | | 1981 | | return r; |
| | | 1982 | | } |
| | | 1983 | | |
| | | 1984 | | #endregion |
| | | 1985 | | |
| | | 1986 | | /// The minimal context-aware flags set by parent |
| | | 1987 | | [Flags] |
| | | 1988 | | internal enum ParentFlags |
| | | 1989 | | { |
| | | 1990 | | /// Default is no flags |
| | | 1991 | | Empty = 0, |
| | | 1992 | | /// The result of expression is ignored and maybe popped out |
| | | 1993 | | IgnoreResult = 1 << 1, |
| | | 1994 | | /// Some parent is the call expression |
| | | 1995 | | Call = 1 << 2, |
| | | 1996 | | /// Any Parent Expression is a MemberExpression |
| | | 1997 | | MemberAccess = 1 << 3, |
| | | 1998 | | /// Some arithmetic operation |
| | | 1999 | | Arithmetic = 1 << 4, |
| | | 2000 | | /// Subject |
| | | 2001 | | Coalesce = 1 << 5, |
| | | 2002 | | /// Expression with instance object (method call or member access or array access) |
| | | 2003 | | InstanceAccess = 1 << 6, |
| | | 2004 | | /// Subject |
| | | 2005 | | DupIt = 1 << 7, |
| | | 2006 | | /// Subject |
| | | 2007 | | TryCatch = 1 << 8, |
| | | 2008 | | /// Combination`of InstanceAccess and Call |
| | | 2009 | | InstanceCall = Call | InstanceAccess, |
| | | 2010 | | /// Constructor |
| | | 2011 | | Ctor = 1 << 9, |
| | | 2012 | | /// Constructor call |
| | | 2013 | | CtorCall = Call | Ctor, |
| | | 2014 | | /// Indexer |
| | | 2015 | | IndexAccess = 1 << 10, |
| | | 2016 | | /// Invoking the inlined lambda (the default System.Expression behavior) |
| | | 2017 | | InlinedLambdaInvoke = 1 << 11, |
| | | 2018 | | /// <summary>Indicate if the part AT LEAST participates in the assignment on the left side, |
| | | 2019 | | /// it may also participate in the right side, e.g. ++x.Bar</summary> |
| | | 2020 | | AssignmentLeftValue = 1 << 12, |
| | | 2021 | | /// <summary>Indicates the ONLY right value of assignment, e.g. `p` in `foo.Bar += p` </summary> |
| | | 2022 | | AssignmentRightValue = 1 << 13, |
| | | 2023 | | /// <summary>Assigning the ref of the right value to the left, e.g. in `var a = ref b[1]` we are passing thi |
| | | 2024 | | AssignmentByRef = 1 << 14, |
| | | 2025 | | /// <summary>Indicates the root lambda call</summary> |
| | | 2026 | | LambdaCall = 1 << 15, |
| | | 2027 | | /// <summary>ReturnByRef</summary> |
| | | 2028 | | ReturnByRef = 1 << 16, |
| | | 2029 | | /// <summary>The block result</summary> |
| | | 2030 | | BlockResult = 1 << 17, |
| | | 2031 | | } |
| | | 2032 | | |
| | | 2033 | | [MethodImpl((MethodImplOptions)256)] |
| | | 2034 | | public static bool IgnoresResult(this ParentFlags parent) => (parent & ParentFlags.IgnoreResult) != 0; |
| | | 2035 | | |
| | | 2036 | | [MethodImpl((MethodImplOptions)256)] |
| | | 2037 | | internal static bool EmitPopIfIgnoreResult(this ILGenerator il, ParentFlags parent) |
| | | 2038 | | { |
| | | 2039 | | if ((parent & ParentFlags.IgnoreResult) != 0) |
| | | 2040 | | il.Demit(OpCodes.Pop); |
| | | 2041 | | return true; |
| | | 2042 | | } |
| | | 2043 | | |
| | | 2044 | | [MethodImpl((MethodImplOptions)256)] |
| | | 2045 | | internal static bool TryEmitBoxOf(this ILGenerator il, Type sourceType) |
| | | 2046 | | { |
| | | 2047 | | if (sourceType.IsValueType) |
| | | 2048 | | il.Demit(OpCodes.Box, sourceType); |
| | | 2049 | | return true; |
| | | 2050 | | } |
| | | 2051 | | |
| | | 2052 | | [MethodImpl((MethodImplOptions)256)] |
| | | 2053 | | internal static bool TryEmitUnboxOf(this ILGenerator il, Type sourceType) |
| | | 2054 | | { |
| | | 2055 | | if (sourceType.IsValueType) |
| | | 2056 | | il.Demit(OpCodes.Unbox_Any, sourceType); |
| | | 2057 | | return true; |
| | | 2058 | | } |
| | | 2059 | | |
| | | 2060 | | /// <summary>Supports emitting of selected expressions, e.g. lambdaExpr are not supported yet. |
| | | 2061 | | /// When emitter find not supported expression it will return false from <see cref="TryEmit"/>, so I could fallb |
| | | 2062 | | /// to normal and slow Expression.Compile.</summary> |
| | | 2063 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 2064 | | internal static class EmittingVisitor |
| | | 2065 | | { |
| | | 2066 | | // todo: @perf use UnsafeAccessAttribute |
| | | 2067 | | /// <summary>Get a type from handle</summary> |
| | | 2068 | | public static readonly MethodInfo GetTypeFromHandleMethod = |
| | | 2069 | | ((Func<RuntimeTypeHandle, Type>)Type.GetTypeFromHandle).Method; |
| | | 2070 | | private static readonly MethodInfo _objectEqualsMethod = |
| | | 2071 | | ((Func<object, object, bool>)object.Equals).Method; |
| | | 2072 | | |
| | | 2073 | | public static bool TryEmit(Expression expr, |
| | | 2074 | | #if LIGHT_EXPRESSION |
| | | 2075 | | IParameterProvider paramExprs, |
| | | 2076 | | #else |
| | | 2077 | | IReadOnlyList<PE> paramExprs, |
| | | 2078 | | #endif |
| | | 2079 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent, int byRefIndex = -1) |
| | | 2080 | | { |
| | | 2081 | | var exprType = expr.Type; |
| | | 2082 | | while (true) |
| | | 2083 | | { |
| | | 2084 | | closure.LastEmitIsAddress = false; |
| | | 2085 | | #if LIGHT_EXPRESSION |
| | | 2086 | | if (expr.IsIntrinsic) |
| | | 2087 | | return expr.TryEmit(setup, ref closure, paramExprs, il, parent, byRefIndex); |
| | | 2088 | | #endif |
| | | 2089 | | var nodeType = expr.NodeType; |
| | | 2090 | | switch (nodeType) |
| | | 2091 | | { |
| | | 2092 | | case ExpressionType.Parameter: |
| | | 2093 | | return (parent & ParentFlags.IgnoreResult) != 0 || |
| | | 2094 | | TryEmitParameter((ParameterExpression)expr, paramExprs, il, ref closure, setup, parent, |
| | | 2095 | | |
| | | 2096 | | case ExpressionType.TypeAs: |
| | | 2097 | | case ExpressionType.IsTrue: |
| | | 2098 | | case ExpressionType.IsFalse: |
| | | 2099 | | case ExpressionType.Increment: |
| | | 2100 | | case ExpressionType.Decrement: |
| | | 2101 | | case ExpressionType.Negate: |
| | | 2102 | | case ExpressionType.NegateChecked: |
| | | 2103 | | case ExpressionType.OnesComplement: |
| | | 2104 | | case ExpressionType.UnaryPlus: |
| | | 2105 | | case ExpressionType.Unbox: |
| | | 2106 | | return TryEmitSimpleUnaryExpression((UnaryExpression)expr, nodeType, paramExprs, il, ref clo |
| | | 2107 | | |
| | | 2108 | | case ExpressionType.TypeIs: |
| | | 2109 | | case ExpressionType.TypeEqual: |
| | | 2110 | | return TryEmitTypeIsOrEqual((TypeBinaryExpression)expr, paramExprs, il, ref closure, setup, |
| | | 2111 | | |
| | | 2112 | | case ExpressionType.Convert: |
| | | 2113 | | case ExpressionType.ConvertChecked: |
| | | 2114 | | return TryEmitConvert((UnaryExpression)expr, paramExprs, il, ref closure, setup, parent); |
| | | 2115 | | |
| | | 2116 | | case ExpressionType.ArrayIndex: |
| | | 2117 | | var arrIndexExpr = (BinaryExpression)expr; |
| | | 2118 | | return TryEmit(arrIndexExpr.Left, paramExprs, il, ref closure, setup, parent | ParentFlags.I |
| | | 2119 | | && TryEmit(arrIndexExpr.Right, paramExprs, il, ref closure, setup, parent | ParentFlags. |
| | | 2120 | | && TryEmitArrayIndexGet(il, exprType, ref closure, parent); |
| | | 2121 | | |
| | | 2122 | | case ExpressionType.ArrayLength: |
| | | 2123 | | if (!TryEmit(((UnaryExpression)expr).Operand, paramExprs, il, ref closure, setup, parent)) |
| | | 2124 | | return false; |
| | | 2125 | | if ((parent & ParentFlags.IgnoreResult) == 0) |
| | | 2126 | | il.Demit(OpCodes.Ldlen); |
| | | 2127 | | return true; |
| | | 2128 | | |
| | | 2129 | | case ExpressionType.Constant: |
| | | 2130 | | return (parent & ParentFlags.IgnoreResult) != 0 || |
| | | 2131 | | TryEmitConstant((ConstantExpression)expr, exprType, il, ref closure, byRefIndex); |
| | | 2132 | | |
| | | 2133 | | case ExpressionType.Call: |
| | | 2134 | | return TryEmitMethodCall(expr, paramExprs, il, ref closure, setup, parent, byRefIndex); |
| | | 2135 | | |
| | | 2136 | | case ExpressionType.MemberAccess: |
| | | 2137 | | return TryEmitMemberGet((MemberExpression)expr, paramExprs, il, ref closure, setup, parent, |
| | | 2138 | | |
| | | 2139 | | case ExpressionType.New: |
| | | 2140 | | return TryEmitNew(expr, paramExprs, il, ref closure, setup, parent); |
| | | 2141 | | |
| | | 2142 | | case ExpressionType.NewArrayBounds: |
| | | 2143 | | return EmitNewArrayBounds((NewArrayExpression)expr, paramExprs, il, ref closure, setup, pare |
| | | 2144 | | |
| | | 2145 | | case ExpressionType.NewArrayInit: |
| | | 2146 | | return EmitNewArrayInit((NewArrayExpression)expr, paramExprs, il, ref closure, setup, parent |
| | | 2147 | | |
| | | 2148 | | case ExpressionType.MemberInit: |
| | | 2149 | | return EmitMemberInit((MemberInitExpression)expr, paramExprs, il, ref closure, setup, parent |
| | | 2150 | | |
| | | 2151 | | case ExpressionType.ListInit: |
| | | 2152 | | return TryEmitListInit((ListInitExpression)expr, paramExprs, il, ref closure, setup, parent) |
| | | 2153 | | |
| | | 2154 | | case ExpressionType.Lambda: |
| | | 2155 | | return TryEmitNestedLambda((LambdaExpression)expr, paramExprs, il, ref closure); |
| | | 2156 | | |
| | | 2157 | | case ExpressionType.Invoke: |
| | | 2158 | | return TryEmitInvoke((InvocationExpression)expr, paramExprs, il, ref closure, setup, parent) |
| | | 2159 | | |
| | | 2160 | | case ExpressionType.GreaterThan: |
| | | 2161 | | case ExpressionType.GreaterThanOrEqual: |
| | | 2162 | | case ExpressionType.LessThan: |
| | | 2163 | | case ExpressionType.LessThanOrEqual: |
| | | 2164 | | case ExpressionType.Equal: |
| | | 2165 | | case ExpressionType.NotEqual: |
| | | 2166 | | { |
| | | 2167 | | if (exprType.IsPrimitive && Interpreter.TryInterpretBool(out var boolResult, expr, setup |
| | | 2168 | | { |
| | | 2169 | | if ((parent & ParentFlags.IgnoreResult) == 0) |
| | | 2170 | | il.Demit(boolResult ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0); |
| | | 2171 | | return true; |
| | | 2172 | | } |
| | | 2173 | | return TryEmitComparison(((BinaryExpression)expr).Left, ((BinaryExpression)expr).Right, |
| | | 2174 | | ref closure, setup, parent); |
| | | 2175 | | } |
| | | 2176 | | case ExpressionType.Add: |
| | | 2177 | | case ExpressionType.Subtract: |
| | | 2178 | | case ExpressionType.Multiply: |
| | | 2179 | | case ExpressionType.Divide: |
| | | 2180 | | case ExpressionType.Modulo: |
| | | 2181 | | case ExpressionType.And: |
| | | 2182 | | case ExpressionType.Or: |
| | | 2183 | | case ExpressionType.ExclusiveOr: |
| | | 2184 | | case ExpressionType.LeftShift: |
| | | 2185 | | case ExpressionType.RightShift: |
| | | 2186 | | { |
| | | 2187 | | return exprType.IsPrimitive |
| | | 2188 | | && TryInterpretAndEmitResult(expr, il, parent, setup) |
| | | 2189 | | || TryEmitArithmetic(((BinaryExpression)expr).Left, ((BinaryExpression)expr).Right, |
| | | 2190 | | ref closure, setup, parent); |
| | | 2191 | | } |
| | | 2192 | | // todo: @feature #472 add interpretation when those node types are supported |
| | | 2193 | | case ExpressionType.AddChecked: |
| | | 2194 | | case ExpressionType.SubtractChecked: |
| | | 2195 | | case ExpressionType.MultiplyChecked: |
| | | 2196 | | case ExpressionType.Power: |
| | | 2197 | | return TryEmitArithmetic(((BinaryExpression)expr).Left, ((BinaryExpression)expr).Right, node |
| | | 2198 | | ref closure, setup, parent); |
| | | 2199 | | |
| | | 2200 | | case ExpressionType.AndAlso: |
| | | 2201 | | case ExpressionType.OrElse: |
| | | 2202 | | { |
| | | 2203 | | if (Interpreter.TryInterpretBool(out var resultBool, expr, setup)) |
| | | 2204 | | { |
| | | 2205 | | if ((parent & ParentFlags.IgnoreResult) == 0) |
| | | 2206 | | il.Demit(resultBool ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0); |
| | | 2207 | | return true; |
| | | 2208 | | } |
| | | 2209 | | return TryEmitLogicalOperator((BinaryExpression)expr, nodeType, paramExprs, il, ref clos |
| | | 2210 | | } |
| | | 2211 | | case ExpressionType.Not: |
| | | 2212 | | { |
| | | 2213 | | if (Interpreter.TryInterpretBool(out var resultBool, expr, setup)) |
| | | 2214 | | { |
| | | 2215 | | if ((parent & ParentFlags.IgnoreResult) == 0) |
| | | 2216 | | il.Demit(resultBool ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0); |
| | | 2217 | | return true; |
| | | 2218 | | } |
| | | 2219 | | return TryEmitNot((UnaryExpression)expr, paramExprs, il, ref closure, setup, parent); |
| | | 2220 | | } |
| | | 2221 | | case ExpressionType.Coalesce: |
| | | 2222 | | return TryEmitCoalesceOperator((BinaryExpression)expr, paramExprs, il, ref closure, setup, p |
| | | 2223 | | |
| | | 2224 | | case ExpressionType.Conditional: |
| | | 2225 | | var condExpr = (ConditionalExpression)expr; |
| | | 2226 | | var testExpr = condExpr.Test; |
| | | 2227 | | if (Interpreter.TryInterpretBool(out var testIsTrue, testExpr, setup)) |
| | | 2228 | | { |
| | | 2229 | | expr = testIsTrue ? condExpr.IfTrue : condExpr.IfFalse; |
| | | 2230 | | continue; // no recursion, just continue with the left or right side of condition |
| | | 2231 | | } |
| | | 2232 | | return TryEmitConditional(testExpr, condExpr.IfTrue, condExpr.IfFalse, paramExprs, il, ref c |
| | | 2233 | | |
| | | 2234 | | case ExpressionType.PostIncrementAssign: |
| | | 2235 | | case ExpressionType.PreIncrementAssign: |
| | | 2236 | | return TryEmitArithmeticAndOrAssign(((UnaryExpression)expr).Operand, null, exprType, Express |
| | | 2237 | | nodeType == ExpressionType.PostIncrementAssign, paramExprs, il, ref closure, setup, pare |
| | | 2238 | | |
| | | 2239 | | case ExpressionType.PostDecrementAssign: |
| | | 2240 | | case ExpressionType.PreDecrementAssign: |
| | | 2241 | | return TryEmitArithmeticAndOrAssign(((UnaryExpression)expr).Operand, null, exprType, Express |
| | | 2242 | | nodeType == ExpressionType.PostDecrementAssign, paramExprs, il, ref closure, setup, pare |
| | | 2243 | | |
| | | 2244 | | case ExpressionType.AddAssign: |
| | | 2245 | | case ExpressionType.AddAssignChecked: |
| | | 2246 | | case ExpressionType.SubtractAssign: |
| | | 2247 | | case ExpressionType.SubtractAssignChecked: |
| | | 2248 | | case ExpressionType.MultiplyAssign: |
| | | 2249 | | case ExpressionType.MultiplyAssignChecked: |
| | | 2250 | | case ExpressionType.DivideAssign: |
| | | 2251 | | case ExpressionType.ModuloAssign: |
| | | 2252 | | case ExpressionType.PowerAssign: |
| | | 2253 | | case ExpressionType.AndAssign: |
| | | 2254 | | case ExpressionType.OrAssign: |
| | | 2255 | | case ExpressionType.ExclusiveOrAssign: |
| | | 2256 | | case ExpressionType.LeftShiftAssign: |
| | | 2257 | | case ExpressionType.RightShiftAssign: |
| | | 2258 | | case ExpressionType.Assign: |
| | | 2259 | | var ba = (BinaryExpression)expr; |
| | | 2260 | | return TryEmitArithmeticAndOrAssign(ba.Left, ba.Right, exprType, |
| | | 2261 | | AssignToArithmeticOrSelf(nodeType), false, paramExprs, il, ref closure, setup, parent); |
| | | 2262 | | |
| | | 2263 | | case ExpressionType.Block: |
| | | 2264 | | { |
| | | 2265 | | var blockExpr = (BlockExpression)expr; |
| | | 2266 | | var blockVarExprs = blockExpr.Variables; |
| | | 2267 | | var blockVarCount = blockVarExprs?.Count ?? 0; |
| | | 2268 | | var statementExprs = blockExpr.Expressions; // Trim the expressions after the Throw - #1 |
| | | 2269 | | var statementCount = statementExprs.Count; |
| | | 2270 | | if (statementCount == 0) |
| | | 2271 | | return true; // yeah, it is a valid thing |
| | | 2272 | | |
| | | 2273 | | if (blockVarCount == 1 & statementCount == 2 && |
| | | 2274 | | statementExprs[0] is BinaryExpression st0 && st0.NodeType == ExpressionType.Assign & |
| | | 2275 | | statementExprs[1] is BinaryExpression st1 && st1.NodeType == ExpressionType.Assign & |
| | | 2276 | | st0.Left == blockVarExprs[0] && st1.Right == blockVarExprs[0]) |
| | | 2277 | | return TryEmitArithmeticAndOrAssign(st1.Left, st0.Right, st0.Left.Type, |
| | | 2278 | | ExpressionType.Assign, false, paramExprs, il, ref closure, setup, parent); |
| | | 2279 | | |
| | | 2280 | | if (blockVarCount != 0) |
| | | 2281 | | closure.PushBlockAndConstructLocalVars(blockVarExprs, il); |
| | | 2282 | | |
| | | 2283 | | expr = statementExprs[statementCount - 1]; // The last (result) statement in block will |
| | | 2284 | | |
| | | 2285 | | // Try to trim the statements from the end of the Block up to the Throw (if any), |
| | | 2286 | | // or to the prior Label as in the #442 case 2 |
| | | 2287 | | if (statementCount > 1) |
| | | 2288 | | { |
| | | 2289 | | var throwIndex = statementCount - 1; |
| | | 2290 | | for (; throwIndex != -1; --throwIndex) |
| | | 2291 | | { |
| | | 2292 | | var se = statementExprs[throwIndex]; |
| | | 2293 | | if (se.NodeType == ExpressionType.Label) |
| | | 2294 | | { |
| | | 2295 | | throwIndex = -1; // stop the search |
| | | 2296 | | break; |
| | | 2297 | | } |
| | | 2298 | | if (se.NodeType == ExpressionType.Throw) |
| | | 2299 | | break; |
| | | 2300 | | } |
| | | 2301 | | |
| | | 2302 | | // If we have a Throw and it is not the last one |
| | | 2303 | | if (throwIndex != -1 && throwIndex != statementCount - 1) |
| | | 2304 | | { |
| | | 2305 | | // Change the Throw return type to match the one for the Block, and adjust the s |
| | | 2306 | | expr = Expression.Throw(((UnaryExpression)statementExprs[throwIndex]).Operand, b |
| | | 2307 | | statementCount = throwIndex + 1; |
| | | 2308 | | } |
| | | 2309 | | } |
| | | 2310 | | |
| | | 2311 | | // handle the all statements in block excluding the last one |
| | | 2312 | | if (statementCount > 1) |
| | | 2313 | | { |
| | | 2314 | | for (var i = 0; i < statementCount - 1; i++) |
| | | 2315 | | { |
| | | 2316 | | var stExpr = statementExprs[i]; |
| | | 2317 | | if (stExpr.NodeType == ExpressionType.Default && stExpr.Type == typeof(void)) |
| | | 2318 | | continue; |
| | | 2319 | | |
| | | 2320 | | // This is basically the return pattern (see #237), so we don't care for the res |
| | | 2321 | | if (stExpr is GotoExpression gt && gt.Kind == GotoExpressionKind.Return && |
| | | 2322 | | statementExprs[i + 1] is LabelExpression label && label.Target == gt.Target) |
| | | 2323 | | { |
| | | 2324 | | // But we cannot use the return pattern and eliminate the target label if we |
| | | 2325 | | var (gotos, labels) = closure.TargetToGotosAndLabels.Map.TryGetValueRef(labe |
| | | 2326 | | if (found && gotos <= labels) |
| | | 2327 | | { |
| | | 2328 | | if ((parent & ParentFlags.TryCatch) != 0) |
| | | 2329 | | { |
| | | 2330 | | if ((setup & CompilerFlags.ThrowOnNotSupportedExpression) != 0) |
| | | 2331 | | throw new NotSupportedExpressionException(Result.NotSupported_Tr |
| | | 2332 | | return false; // todo: @feature return from the TryCatch with the in |
| | | 2333 | | } |
| | | 2334 | | |
| | | 2335 | | // we are generating the return value and ensuring here that it is not p |
| | | 2336 | | var gtOrLabelValue = gt.Value ?? label.DefaultValue; |
| | | 2337 | | if (gtOrLabelValue != null) |
| | | 2338 | | { |
| | | 2339 | | if (!TryEmit(gtOrLabelValue, paramExprs, il, ref closure, setup, par |
| | | 2340 | | return false; |
| | | 2341 | | |
| | | 2342 | | if ((parent & ParentFlags.InlinedLambdaInvoke) != 0) |
| | | 2343 | | { |
| | | 2344 | | ref var foundLabel = ref closure.LambdaInvokeStackLabels.GetLabe |
| | | 2345 | | if (!labelFound || foundLabel.InlinedLambdaInvokeIndex == -1) |
| | | 2346 | | return false; |
| | | 2347 | | EmitGotoToReturnLabel(ref closure.LambdaInvokeStackLabels.GetSur |
| | | 2348 | | } |
| | | 2349 | | else |
| | | 2350 | | { |
| | | 2351 | | // @hack (related to #237) if `IgnoreResult` set, that means the |
| | | 2352 | | // emitting the double `OpCodes.Ret` (usually for not the last s |
| | | 2353 | | // And vice-versa, if `IgnoreResult` not set then the external c |
| | | 2354 | | // so we should avoid it on our side. |
| | | 2355 | | if ((parent & ParentFlags.IgnoreResult) != 0) |
| | | 2356 | | il.Demit(OpCodes.Ret); |
| | | 2357 | | } |
| | | 2358 | | } |
| | | 2359 | | return true; |
| | | 2360 | | } |
| | | 2361 | | } |
| | | 2362 | | |
| | | 2363 | | if (!TryEmit(stExpr, paramExprs, il, ref closure, setup, parent | ParentFlags.Ig |
| | | 2364 | | return false; |
| | | 2365 | | } |
| | | 2366 | | } |
| | | 2367 | | |
| | | 2368 | | parent |= ParentFlags.BlockResult; |
| | | 2369 | | if (blockVarCount == 0) |
| | | 2370 | | continue; // OMG! no recursion, continue with the last expression |
| | | 2371 | | |
| | | 2372 | | if (!TryEmit(expr, paramExprs, il, ref closure, setup, parent)) |
| | | 2373 | | return false; |
| | | 2374 | | |
| | | 2375 | | closure.PopBlock(); |
| | | 2376 | | return true; |
| | | 2377 | | } |
| | | 2378 | | case ExpressionType.Loop: |
| | | 2379 | | return TryEmitLoop((LoopExpression)expr, paramExprs, il, ref closure, setup, parent); |
| | | 2380 | | |
| | | 2381 | | case ExpressionType.Try: |
| | | 2382 | | return TryEmitTryCatchFinallyBlock((TryExpression)expr, paramExprs, il, ref closure, setup, |
| | | 2383 | | |
| | | 2384 | | case ExpressionType.Throw: |
| | | 2385 | | { |
| | | 2386 | | var ok = true; |
| | | 2387 | | var throwOperand = ((UnaryExpression)expr).Operand; |
| | | 2388 | | if (throwOperand != null) |
| | | 2389 | | ok = TryEmit(throwOperand, paramExprs, il, ref closure, setup, parent & ~ParentFlags |
| | | 2390 | | il.Demit(throwOperand != null ? OpCodes.Throw : OpCodes.Rethrow); |
| | | 2391 | | return ok; |
| | | 2392 | | } |
| | | 2393 | | |
| | | 2394 | | case ExpressionType.Default: |
| | | 2395 | | if (exprType != typeof(void) && (parent & ParentFlags.IgnoreResult) == 0) |
| | | 2396 | | EmitDefault(il, exprType); |
| | | 2397 | | return true; |
| | | 2398 | | |
| | | 2399 | | case ExpressionType.Index: |
| | | 2400 | | return TryEmitIndexGet((IndexExpression)expr, paramExprs, il, ref closure, setup, parent); |
| | | 2401 | | |
| | | 2402 | | case ExpressionType.Goto: |
| | | 2403 | | return TryEmitGoto((GotoExpression)expr, paramExprs, il, ref closure, setup, parent); |
| | | 2404 | | |
| | | 2405 | | case ExpressionType.Label: |
| | | 2406 | | return TryEmitLabel((LabelExpression)expr, paramExprs, il, ref closure, setup, parent); |
| | | 2407 | | |
| | | 2408 | | case ExpressionType.Switch: |
| | | 2409 | | return TryEmitSwitch((SwitchExpression)expr, paramExprs, il, ref closure, setup, parent); |
| | | 2410 | | |
| | | 2411 | | case ExpressionType.Extension: |
| | | 2412 | | expr = expr.Reduce(); |
| | | 2413 | | continue; |
| | | 2414 | | |
| | | 2415 | | case ExpressionType.DebugInfo: // todo: @feature - is not supported yet |
| | | 2416 | | return true; // todo: @unclear - just ignoring the info for now |
| | | 2417 | | |
| | | 2418 | | case ExpressionType.Quote: // todo: @feature - is not supported yet |
| | | 2419 | | default: |
| | | 2420 | | return false; |
| | | 2421 | | |
| | | 2422 | | } |
| | | 2423 | | } |
| | | 2424 | | } |
| | | 2425 | | |
| | | 2426 | | #if LIGHT_EXPRESSION |
| | | 2427 | | private static bool TryEmitNew(Expression expr, IParameterProvider paramExprs, ILGenerator il, ref ClosureIn |
| | | 2428 | | CompilerFlags setup, ParentFlags parent) |
| | | 2429 | | #else |
| | | 2430 | | private static bool TryEmitNew(Expression expr, IReadOnlyList<PE> paramExprs, ILGenerator il, ref ClosureInf |
| | | 2431 | | CompilerFlags setup, ParentFlags parent) |
| | | 2432 | | #endif |
| | | 2433 | | { |
| | | 2434 | | parent |= ParentFlags.CtorCall; |
| | | 2435 | | var newExpr = (NewExpression)expr; |
| | | 2436 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 2437 | | var argExprs = (IArgumentProvider)newExpr; |
| | | 2438 | | #else |
| | | 2439 | | var argExprs = newExpr.Arguments; |
| | | 2440 | | #endif |
| | | 2441 | | var argCount = argExprs.GetCount(); |
| | | 2442 | | var ctor = newExpr.Constructor; |
| | | 2443 | | if (argCount != 0) |
| | | 2444 | | { |
| | | 2445 | | var pars = ctor.GetParameters(); |
| | | 2446 | | |
| | | 2447 | | // If we have complex arguments then it is better to store them in the variables, then load them bef |
| | | 2448 | | // Otherwise the stack may be broken by the long emit chain, and the previous argument result on sta |
| | | 2449 | | // may be hidden by the next argument interim stack additions, |
| | | 2450 | | // see the #488 for the details. |
| | | 2451 | | if (argCount == 1) |
| | | 2452 | | { |
| | | 2453 | | if (!TryEmit(argExprs.GetArgument(0), paramExprs, il, ref closure, setup, parent, pars[0].Parame |
| | | 2454 | | return false; |
| | | 2455 | | } |
| | | 2456 | | else |
| | | 2457 | | { |
| | | 2458 | | if (!closure.ArgsContainingComplexExpression.Map.ContainsKey(newExpr)) |
| | | 2459 | | { |
| | | 2460 | | for (var i = 0; i < argCount; ++i) |
| | | 2461 | | if (!TryEmit(argExprs.GetArgument(i), paramExprs, il, ref closure, setup, parent, pars[i |
| | | 2462 | | return false; |
| | | 2463 | | } |
| | | 2464 | | else |
| | | 2465 | | { |
| | | 2466 | | SmallList<int, Stack8<int>> argVars = default; |
| | | 2467 | | for (var i = 0; i < argCount; ++i) |
| | | 2468 | | { |
| | | 2469 | | var argExpr = argExprs.GetArgument(i); |
| | | 2470 | | var parType = pars[i].ParameterType; |
| | | 2471 | | if (!TryEmit(argExpr, paramExprs, il, ref closure, setup, parent, parType.IsByRef ? i : |
| | | 2472 | | return false; |
| | | 2473 | | argVars.Add(EmitStoreLocalVariable(il, parType)); |
| | | 2474 | | } |
| | | 2475 | | for (var i = 0; i < argCount; ++i) |
| | | 2476 | | EmitLoadLocalVariable(il, argVars[i]); |
| | | 2477 | | } |
| | | 2478 | | } |
| | | 2479 | | } |
| | | 2480 | | // ReSharper disable once ConditionIsAlwaysTrueOrFalse |
| | | 2481 | | if (ctor != null) |
| | | 2482 | | il.Demit(OpCodes.Newobj, ctor); |
| | | 2483 | | else if (newExpr.Type.IsValueType) |
| | | 2484 | | { |
| | | 2485 | | ctor = newExpr.Type.GetConstructor( |
| | | 2486 | | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, |
| | | 2487 | | default, CallingConventions.Any, Tools.Empty<Type>(), default); |
| | | 2488 | | if (ctor != null) |
| | | 2489 | | il.Demit(OpCodes.Newobj, ctor); |
| | | 2490 | | else |
| | | 2491 | | EmitLoadLocalVariable(il, InitValueTypeVariable(il, newExpr.Type)); |
| | | 2492 | | } |
| | | 2493 | | else |
| | | 2494 | | return false; |
| | | 2495 | | return true; |
| | | 2496 | | } |
| | | 2497 | | |
| | | 2498 | | #if LIGHT_EXPRESSION |
| | | 2499 | | private static bool TryEmitLoop(LoopExpression loopExpr, IParameterProvider paramExprs, ILGenerator il, ref |
| | | 2500 | | CompilerFlags setup, ParentFlags parent) |
| | | 2501 | | #else |
| | | 2502 | | private static bool TryEmitLoop(LoopExpression loopExpr, IReadOnlyList<PE> paramExprs, ILGenerator il, ref C |
| | | 2503 | | CompilerFlags setup, ParentFlags parent) |
| | | 2504 | | #endif |
| | | 2505 | | { |
| | | 2506 | | // Mark the start of the loop body: |
| | | 2507 | | var loopBodyLabel = il.DefineLabel(); |
| | | 2508 | | il.DmarkLabel(loopBodyLabel); |
| | | 2509 | | |
| | | 2510 | | if (loopExpr.ContinueLabel != null) |
| | | 2511 | | { |
| | | 2512 | | ref var continueLabelInfo = ref closure.LambdaInvokeStackLabels.GetLabelOrInvokeIndexByTarget(loopEx |
| | | 2513 | | if (!foundLabel) |
| | | 2514 | | return false; |
| | | 2515 | | var continueLabel = continueLabelInfo.GetOrDefineLabel(il); |
| | | 2516 | | il.DmarkLabel(continueLabel); |
| | | 2517 | | } |
| | | 2518 | | |
| | | 2519 | | if (!TryEmit(loopExpr.Body, paramExprs, il, ref closure, setup, parent)) |
| | | 2520 | | return false; |
| | | 2521 | | |
| | | 2522 | | // If loop hasn't exited, jump back to start of its body: |
| | | 2523 | | il.Demit(OpCodes.Br, loopBodyLabel); |
| | | 2524 | | |
| | | 2525 | | if (loopExpr.BreakLabel != null) |
| | | 2526 | | { |
| | | 2527 | | ref var breakLabelInfo = ref closure.LambdaInvokeStackLabels.GetLabelOrInvokeIndexByTarget(loopExpr. |
| | | 2528 | | if (!foundLabel) |
| | | 2529 | | return false; |
| | | 2530 | | var breakLabel = breakLabelInfo.GetOrDefineLabel(il); |
| | | 2531 | | il.DmarkLabel(breakLabel); |
| | | 2532 | | } |
| | | 2533 | | |
| | | 2534 | | return true; |
| | | 2535 | | } |
| | | 2536 | | |
| | | 2537 | | // similar code is used by the TryEmitArithmeticAndOrAssign, so don't forget to modify it as well |
| | | 2538 | | private static bool TryEmitIndexGet(IndexExpression indexExpr, |
| | | 2539 | | #if LIGHT_EXPRESSION |
| | | 2540 | | IParameterProvider paramExprs, |
| | | 2541 | | #else |
| | | 2542 | | IReadOnlyList<PE> paramExprs, |
| | | 2543 | | #endif |
| | | 2544 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 2545 | | { |
| | | 2546 | | var p = parent & ~ParentFlags.IgnoreResult | ParentFlags.IndexAccess; |
| | | 2547 | | |
| | | 2548 | | var objExpr = indexExpr.Object; |
| | | 2549 | | if (objExpr != null && |
| | | 2550 | | !TryEmit(objExpr, paramExprs, il, ref closure, setup, p | ParentFlags.InstanceAccess)) |
| | | 2551 | | return false; |
| | | 2552 | | |
| | | 2553 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 2554 | | var indexArgs = (IArgumentProvider)indexExpr; |
| | | 2555 | | #else |
| | | 2556 | | var indexArgs = indexExpr.Arguments; |
| | | 2557 | | #endif |
| | | 2558 | | var indexArgCount = indexArgs.GetCount(); |
| | | 2559 | | for (var i = 0; i < indexArgCount; i++) |
| | | 2560 | | if (!TryEmit(indexArgs.GetArgument(i), paramExprs, il, ref closure, setup, p, -1)) |
| | | 2561 | | return false; |
| | | 2562 | | |
| | | 2563 | | var indexerProp = indexExpr.Indexer; |
| | | 2564 | | return indexerProp != null |
| | | 2565 | | ? EmitMethodCallOrVirtualCallCheckForNull(il, indexerProp.GetMethod) |
| | | 2566 | | : indexArgCount == 1 |
| | | 2567 | | ? TryEmitArrayIndexGet(il, indexExpr.Type, ref closure, parent) // one-dimensional array |
| | | 2568 | | : EmitMethodCallOrVirtualCallCheckForNull(il, objExpr?.Type.FindMethod("Get")); // multi-dimensi |
| | | 2569 | | } |
| | | 2570 | | |
| | | 2571 | | #if LIGHT_EXPRESSION |
| | | 2572 | | private static bool TryEmitLabel(LabelExpression expr, IParameterProvider paramExprs, ILGenerator il, ref Cl |
| | | 2573 | | CompilerFlags setup, ParentFlags parent) |
| | | 2574 | | #else |
| | | 2575 | | private static bool TryEmitLabel(LabelExpression expr, IReadOnlyList<PE> paramExprs, ILGenerator il, ref Clo |
| | | 2576 | | CompilerFlags setup, ParentFlags parent) |
| | | 2577 | | #endif |
| | | 2578 | | { |
| | | 2579 | | ref var labelInfo = ref closure.LambdaInvokeStackLabels.GetLabelOrInvokeIndexByTarget(expr.Target, out v |
| | | 2580 | | if (!foundLabel) |
| | | 2581 | | return false; |
| | | 2582 | | |
| | | 2583 | | var label = labelInfo.GetOrDefineLabel(il); |
| | | 2584 | | il.DmarkLabel(label); |
| | | 2585 | | |
| | | 2586 | | var defaultValue = expr.DefaultValue; |
| | | 2587 | | if (defaultValue != null && !TryEmit(defaultValue, paramExprs, il, ref closure, setup, parent)) |
| | | 2588 | | return false; |
| | | 2589 | | |
| | | 2590 | | var returnVariableIndexPlusOne = labelInfo.ReturnVariableIndexPlusOneAndIsDefined >>> 1; |
| | | 2591 | | if (returnVariableIndexPlusOne != 0) |
| | | 2592 | | { |
| | | 2593 | | if (defaultValue != null) |
| | | 2594 | | EmitStoreLocalVariable(il, returnVariableIndexPlusOne - 1); |
| | | 2595 | | |
| | | 2596 | | il.DmarkLabel(labelInfo.ReturnLabel); |
| | | 2597 | | if (!parent.IgnoresResult()) |
| | | 2598 | | EmitLoadLocalVariable(il, returnVariableIndexPlusOne - 1); |
| | | 2599 | | } |
| | | 2600 | | return foundLabel; |
| | | 2601 | | } |
| | | 2602 | | |
| | | 2603 | | // For TryCatch get the variable for saving the result from the LabelInfo store the return expression result |
| | | 2604 | | // Emit OpCodes.Leave or OpCodes.Br to the special label with the result which should be marked after the la |
| | | 2605 | | private static void EmitGotoToReturnLabel(ref LabelInfo labelInfo, ILGenerator il, Expression gotoValue, OpC |
| | | 2606 | | { |
| | | 2607 | | var returnVariableIndexPlusOne = labelInfo.ReturnVariableIndexPlusOneAndIsDefined >>> 1; |
| | | 2608 | | if (returnVariableIndexPlusOne == 0) |
| | | 2609 | | { |
| | | 2610 | | returnVariableIndexPlusOne = il.GetNextLocalVarIndex(gotoValue.Type) + 1; |
| | | 2611 | | labelInfo.ReturnVariableIndexPlusOneAndIsDefined = (short)(returnVariableIndexPlusOne << 1); |
| | | 2612 | | labelInfo.ReturnLabel = il.DefineLabel(); |
| | | 2613 | | } |
| | | 2614 | | EmitStoreLocalVariable(il, returnVariableIndexPlusOne - 1); |
| | | 2615 | | il.Demit(returnOpCode, labelInfo.ReturnLabel); |
| | | 2616 | | } |
| | | 2617 | | |
| | | 2618 | | #if LIGHT_EXPRESSION |
| | | 2619 | | private static bool TryEmitGoto(GotoExpression expr, IParameterProvider paramExprs, ILGenerator il, ref Clos |
| | | 2620 | | CompilerFlags setup, ParentFlags parent) |
| | | 2621 | | #else |
| | | 2622 | | private static bool TryEmitGoto(GotoExpression expr, IReadOnlyList<PE> paramExprs, ILGenerator il, ref Closu |
| | | 2623 | | CompilerFlags setup, ParentFlags parent) |
| | | 2624 | | #endif |
| | | 2625 | | { |
| | | 2626 | | ref var labelInfo = ref closure.LambdaInvokeStackLabels.GetLabelOrInvokeIndexByTarget(expr.Target, out v |
| | | 2627 | | if (!labelFound) |
| | | 2628 | | { |
| | | 2629 | | if ((closure.Status & ClosureStatus.ToBeCollected) == 0) |
| | | 2630 | | return false; // if no collection cycle then the labels may be not collected |
| | | 2631 | | throw new InvalidOperationException($"Cannot jump, no labels found for the target `{expr.Target}`"); |
| | | 2632 | | } |
| | | 2633 | | var gotoValue = expr.Value; |
| | | 2634 | | if (gotoValue != null && |
| | | 2635 | | !TryEmit(gotoValue, paramExprs, il, ref closure, setup, parent & ~ParentFlags.IgnoreResult)) |
| | | 2636 | | return false; |
| | | 2637 | | |
| | | 2638 | | switch (expr.Kind) |
| | | 2639 | | { |
| | | 2640 | | case GotoExpressionKind.Break: |
| | | 2641 | | case GotoExpressionKind.Continue: |
| | | 2642 | | il.Demit(OpCodes.Br, labelInfo.GetOrDefineLabel(il)); |
| | | 2643 | | return true; |
| | | 2644 | | |
| | | 2645 | | case GotoExpressionKind.Goto: |
| | | 2646 | | if (gotoValue != null) |
| | | 2647 | | goto case GotoExpressionKind.Return; |
| | | 2648 | | |
| | | 2649 | | var gotoOpCode = (parent & ParentFlags.TryCatch) != 0 ? OpCodes.Leave : OpCodes.Br; |
| | | 2650 | | il.Demit(gotoOpCode, labelInfo.GetOrDefineLabel(il)); |
| | | 2651 | | return true; |
| | | 2652 | | |
| | | 2653 | | case GotoExpressionKind.Return: |
| | | 2654 | | if ((parent & ParentFlags.TryCatch) != 0) |
| | | 2655 | | { |
| | | 2656 | | if (gotoValue != null) |
| | | 2657 | | EmitGotoToReturnLabel(ref labelInfo, il, gotoValue, OpCodes.Leave); |
| | | 2658 | | else |
| | | 2659 | | il.Demit(OpCodes.Leave, labelInfo.GetOrDefineLabel(il)); // if there is no return value |
| | | 2660 | | } |
| | | 2661 | | else if ((parent & ParentFlags.InlinedLambdaInvoke) != 0) |
| | | 2662 | | { |
| | | 2663 | | if (gotoValue != null) |
| | | 2664 | | { |
| | | 2665 | | var invokeIndex = labelInfo.InlinedLambdaInvokeIndex; |
| | | 2666 | | if (invokeIndex == -1) |
| | | 2667 | | return false; |
| | | 2668 | | EmitGotoToReturnLabel(ref closure.LambdaInvokeStackLabels.GetSurePresentItemRef(invokeIn |
| | | 2669 | | } |
| | | 2670 | | } |
| | | 2671 | | else |
| | | 2672 | | il.Demit(OpCodes.Ret); |
| | | 2673 | | return true; |
| | | 2674 | | |
| | | 2675 | | default: |
| | | 2676 | | return false; |
| | | 2677 | | } |
| | | 2678 | | } |
| | | 2679 | | |
| | | 2680 | | #if LIGHT_EXPRESSION |
| | | 2681 | | private static bool TryEmitCoalesceOperator(BinaryExpression expr, IParameterProvider paramExprs, ILGenerato |
| | | 2682 | | CompilerFlags setup, ParentFlags parent) |
| | | 2683 | | #else |
| | | 2684 | | private static bool TryEmitCoalesceOperator(BinaryExpression expr, IReadOnlyList<PE> paramExprs, ILGenerator |
| | | 2685 | | CompilerFlags setup, ParentFlags parent) |
| | | 2686 | | #endif |
| | | 2687 | | { |
| | | 2688 | | var labelFalse = il.DefineLabel(); // todo: @perf define only if needed |
| | | 2689 | | var labelDone = il.DefineLabel(); |
| | | 2690 | | |
| | | 2691 | | var left = expr.Left; |
| | | 2692 | | var right = expr.Right; |
| | | 2693 | | |
| | | 2694 | | // we won't OpCodes.Pop inside the Coalesce as it may leave the Il in invalid state - instead we will po |
| | | 2695 | | var flags = (parent & ~ParentFlags.IgnoreResult) | ParentFlags.Coalesce; |
| | | 2696 | | |
| | | 2697 | | if (!TryEmit(left, paramExprs, il, ref closure, setup, flags)) |
| | | 2698 | | return false; |
| | | 2699 | | |
| | | 2700 | | var exprType = expr.Type; |
| | | 2701 | | var leftType = left.Type; |
| | | 2702 | | if (leftType.IsValueType) |
| | | 2703 | | { |
| | | 2704 | | Debug.Assert(leftType.IsNullable(), "Expecting Nullable, it is the only ValueType comparable to null |
| | | 2705 | | |
| | | 2706 | | var varIndex = EmitStoreAndLoadLocalVariableAddress(il, leftType); |
| | | 2707 | | EmitMethodCall(il, leftType.GetNullableHasValueGetterMethod()); |
| | | 2708 | | |
| | | 2709 | | il.Demit(OpCodes.Brfalse, labelFalse); |
| | | 2710 | | |
| | | 2711 | | if (exprType == Nullable.GetUnderlyingType(leftType)) |
| | | 2712 | | { |
| | | 2713 | | // if the target expression type is of underlying nullable, and the left operand is not null, |
| | | 2714 | | // then extract its underlying value |
| | | 2715 | | EmitLoadLocalVariableAddress(il, varIndex); |
| | | 2716 | | il.Demit(OpCodes.Ldfld, leftType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 2717 | | } |
| | | 2718 | | else |
| | | 2719 | | EmitLoadLocalVariable(il, varIndex); // loading the value (not address) to return it |
| | | 2720 | | |
| | | 2721 | | il.Demit(OpCodes.Br, labelDone); |
| | | 2722 | | il.DmarkLabel(labelFalse); |
| | | 2723 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, flags)) |
| | | 2724 | | return false; |
| | | 2725 | | |
| | | 2726 | | il.DmarkLabel(labelDone); |
| | | 2727 | | } |
| | | 2728 | | else |
| | | 2729 | | { |
| | | 2730 | | il.Demit(OpCodes.Dup); // duplicate left, if it's not null, after the branch this val |
| | | 2731 | | il.Demit(OpCodes.Brtrue, labelFalse); // automates the chain of the Ldnull, Ceq, Brfalse |
| | | 2732 | | il.Demit(OpCodes.Pop); // left is null, pop its value from the stack |
| | | 2733 | | |
| | | 2734 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, flags)) |
| | | 2735 | | return false; |
| | | 2736 | | |
| | | 2737 | | if (right.Type != exprType) |
| | | 2738 | | il.TryEmitBoxOf(right.Type); |
| | | 2739 | | |
| | | 2740 | | if (left.Type == exprType) |
| | | 2741 | | il.DmarkLabel(labelFalse); |
| | | 2742 | | else |
| | | 2743 | | { |
| | | 2744 | | il.Demit(OpCodes.Br, labelDone); |
| | | 2745 | | il.DmarkLabel(labelFalse); // todo: @bug? should we insert the boxing for the Nullable value typ |
| | | 2746 | | il.Demit(OpCodes.Castclass, exprType); |
| | | 2747 | | il.DmarkLabel(labelDone); |
| | | 2748 | | } |
| | | 2749 | | } |
| | | 2750 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 2751 | | } |
| | | 2752 | | |
| | | 2753 | | /// <summary>Emit default op code for the type</summary> |
| | | 2754 | | public static void EmitDefault(ILGenerator il, Type type) |
| | | 2755 | | { |
| | | 2756 | | if (type.IsClass) |
| | | 2757 | | { |
| | | 2758 | | il.Demit(OpCodes.Ldnull); |
| | | 2759 | | return; |
| | | 2760 | | } |
| | | 2761 | | switch (Type.GetTypeCode(type)) |
| | | 2762 | | { |
| | | 2763 | | case TypeCode.Boolean: |
| | | 2764 | | case TypeCode.Char: |
| | | 2765 | | case TypeCode.Byte: |
| | | 2766 | | case TypeCode.SByte: |
| | | 2767 | | case TypeCode.Int16: |
| | | 2768 | | case TypeCode.UInt16: |
| | | 2769 | | case TypeCode.Int32: |
| | | 2770 | | case TypeCode.UInt32: |
| | | 2771 | | il.Demit(OpCodes.Ldc_I4_0); |
| | | 2772 | | break; |
| | | 2773 | | case TypeCode.Int64: |
| | | 2774 | | case TypeCode.UInt64: |
| | | 2775 | | il.Demit(OpCodes.Ldc_I4_0); |
| | | 2776 | | il.Demit(OpCodes.Conv_I8); |
| | | 2777 | | break; |
| | | 2778 | | case TypeCode.Single: |
| | | 2779 | | il.Demit(OpCodes.Ldc_R4, default(float)); |
| | | 2780 | | break; |
| | | 2781 | | case TypeCode.Double: |
| | | 2782 | | il.Demit(OpCodes.Ldc_R8, default(double)); |
| | | 2783 | | break; |
| | | 2784 | | default: |
| | | 2785 | | EmitLoadLocalVariable(il, InitValueTypeVariable(il, type)); |
| | | 2786 | | break; |
| | | 2787 | | } |
| | | 2788 | | } |
| | | 2789 | | |
| | | 2790 | | #if LIGHT_EXPRESSION |
| | | 2791 | | private static bool TryEmitTryCatchFinallyBlock(TryExpression tryExpr, IParameterProvider paramExprs, ILGene |
| | | 2792 | | CompilerFlags setup, ParentFlags parent) |
| | | 2793 | | #else |
| | | 2794 | | private static bool TryEmitTryCatchFinallyBlock(TryExpression tryExpr, IReadOnlyList<PE> paramExprs, ILGener |
| | | 2795 | | CompilerFlags setup, ParentFlags parent) |
| | | 2796 | | #endif |
| | | 2797 | | { |
| | | 2798 | | #if DEMIT |
| | | 2799 | | Debug.WriteLine("try {"); |
| | | 2800 | | #endif |
| | | 2801 | | il.BeginExceptionBlock(); |
| | | 2802 | | |
| | | 2803 | | if (!TryEmit(tryExpr.Body, paramExprs, il, ref closure, setup, parent)) |
| | | 2804 | | return false; |
| | | 2805 | | |
| | | 2806 | | var exprType = tryExpr.Type; |
| | | 2807 | | var returnsResult = exprType != typeof(void) && !parent.IgnoresResult(); |
| | | 2808 | | var resultVarIndex = -1; |
| | | 2809 | | |
| | | 2810 | | if (returnsResult) |
| | | 2811 | | EmitStoreLocalVariable(il, resultVarIndex = il.GetNextLocalVarIndex(exprType)); |
| | | 2812 | | |
| | | 2813 | | var catchBlocks = tryExpr.Handlers; |
| | | 2814 | | for (var i = 0; i < catchBlocks.Count; i++) |
| | | 2815 | | { |
| | | 2816 | | var catchBlock = catchBlocks[i]; |
| | | 2817 | | if (catchBlock.Filter != null) |
| | | 2818 | | { |
| | | 2819 | | if ((setup & CompilerFlags.ThrowOnNotSupportedExpression) != 0) |
| | | 2820 | | throw new NotSupportedExpressionException(Result.NotSupported_ExceptionCatchFilter); |
| | | 2821 | | return false; |
| | | 2822 | | } |
| | | 2823 | | |
| | | 2824 | | il.BeginCatchBlock(catchBlock.Test); |
| | | 2825 | | |
| | | 2826 | | // at the beginning of catch the Exception value is on the stack, |
| | | 2827 | | // we will store into local variable. |
| | | 2828 | | var exVarExpr = catchBlock.Variable; |
| | | 2829 | | #if DEMIT |
| | | 2830 | | Debug.WriteLine($"}} catch {{"); |
| | | 2831 | | #endif |
| | | 2832 | | if (exVarExpr != null) |
| | | 2833 | | { |
| | | 2834 | | // first, check if the exception variable was used before and supposed to be reused in the new c |
| | | 2835 | | // (this is decided by creator of expression) |
| | | 2836 | | var exVarIndex = closure.GetDefinedLocalVarOrDefault(exVarExpr); |
| | | 2837 | | if (exVarIndex == -1) |
| | | 2838 | | exVarIndex = il.GetNextLocalVarIndex(exVarExpr.Type); |
| | | 2839 | | closure.PushBlockWithVars(exVarExpr, exVarIndex); |
| | | 2840 | | EmitStoreLocalVariable(il, exVarIndex); |
| | | 2841 | | } |
| | | 2842 | | |
| | | 2843 | | if (!TryEmit(catchBlock.Body, paramExprs, il, ref closure, setup, parent)) |
| | | 2844 | | return false; |
| | | 2845 | | |
| | | 2846 | | if (exVarExpr != null) |
| | | 2847 | | closure.PopBlock(); |
| | | 2848 | | |
| | | 2849 | | if (returnsResult) |
| | | 2850 | | EmitStoreLocalVariable(il, resultVarIndex); |
| | | 2851 | | } |
| | | 2852 | | |
| | | 2853 | | if (tryExpr.Fault != null) |
| | | 2854 | | { |
| | | 2855 | | var faultExpr = tryExpr.Fault; |
| | | 2856 | | #if DEMIT |
| | | 2857 | | Debug.WriteLine("} fault {" + faultExpr); |
| | | 2858 | | #endif |
| | | 2859 | | il.BeginFaultBlock(); |
| | | 2860 | | // it is important to ignore result for the fault block, because it should not return anything |
| | | 2861 | | if (!TryEmit(faultExpr, paramExprs, il, ref closure, setup, parent | ParentFlags.IgnoreResult)) |
| | | 2862 | | return false; |
| | | 2863 | | } |
| | | 2864 | | else if (tryExpr.Finally != null) |
| | | 2865 | | { |
| | | 2866 | | var finallyExpr = tryExpr.Finally; |
| | | 2867 | | #if DEMIT |
| | | 2868 | | Debug.WriteLine("} finally {" + finallyExpr); |
| | | 2869 | | #endif |
| | | 2870 | | il.BeginFinallyBlock(); |
| | | 2871 | | // it is important to ignore result for the finally block, because it should not return anything |
| | | 2872 | | if (!TryEmit(finallyExpr, paramExprs, il, ref closure, setup, parent | ParentFlags.IgnoreResult)) |
| | | 2873 | | return false; |
| | | 2874 | | } |
| | | 2875 | | |
| | | 2876 | | il.EndExceptionBlock(); |
| | | 2877 | | |
| | | 2878 | | #if DEMIT |
| | | 2879 | | Debug.WriteLine("}"); |
| | | 2880 | | #endif |
| | | 2881 | | |
| | | 2882 | | if (returnsResult) |
| | | 2883 | | EmitLoadLocalVariable(il, resultVarIndex); |
| | | 2884 | | |
| | | 2885 | | return true; |
| | | 2886 | | } |
| | | 2887 | | |
| | | 2888 | | public static bool TryEmitParameter(ParameterExpression paramExpr, |
| | | 2889 | | #if LIGHT_EXPRESSION |
| | | 2890 | | IParameterProvider paramExprs, |
| | | 2891 | | #else |
| | | 2892 | | IReadOnlyList<PE> paramExprs, |
| | | 2893 | | #endif |
| | | 2894 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent, int byRefIndex = -1) |
| | | 2895 | | { |
| | | 2896 | | var paramExprCount = paramExprs.GetCount(); |
| | | 2897 | | var paramType = paramExpr.Type; |
| | | 2898 | | var isValueType = paramType.IsValueType; |
| | | 2899 | | var isParamOrVarByRef = paramExpr.IsByRef && !paramType.IsNullable(); // for the nullable part check the |
| | | 2900 | | var isPassedRef = byRefIndex != -1; |
| | | 2901 | | |
| | | 2902 | | // Parameter may represent a variable, so first look if this is the case, |
| | | 2903 | | // and the variable is defined in the current block |
| | | 2904 | | var varIndex = closure.GetDefinedLocalVarOrDefault(paramExpr); |
| | | 2905 | | if (varIndex != -1) |
| | | 2906 | | { |
| | | 2907 | | // todo: @perf analyze if the variable is actually may be mutated in the nested lambda by being assi |
| | | 2908 | | // Check if the variable is passed to the nested closure (#437), so it should be loaded from the nes |
| | | 2909 | | var nestedLambdasCount = closure.NestedLambdas.Count; |
| | | 2910 | | if (nestedLambdasCount != 0) |
| | | 2911 | | { |
| | | 2912 | | var nestedLambdas = closure.NestedLambdas.Items; |
| | | 2913 | | for (var nestedLambdaIndex = 0; nestedLambdaIndex < nestedLambdasCount; ++nestedLambdaIndex) |
| | | 2914 | | { |
| | | 2915 | | var lambdaInfo = nestedLambdas[nestedLambdaIndex]; |
| | | 2916 | | var nonPassedParamCount = lambdaInfo.NonPassedParameters.Count; |
| | | 2917 | | if (nonPassedParamCount != 0) |
| | | 2918 | | { |
| | | 2919 | | var varIndexInNonPassedParams = lambdaInfo.NonPassedParameters.TryGetIndex(paramExpr, de |
| | | 2920 | | if (varIndexInNonPassedParams != -1 && |
| | | 2921 | | (lambdaInfo.NonPassedParamMutatedIndexBits & (1UL << varIndexInNonPassedParams)) != |
| | | 2922 | | { |
| | | 2923 | | // Load the nested lambda item from the closure constants and nested lambdas array |
| | | 2924 | | var closureArrayItemIndex = closure.Constants.Count + nestedLambdaIndex; |
| | | 2925 | | EmitLoadClosureArrayItem(il, closureArrayItemIndex); |
| | | 2926 | | |
| | | 2927 | | // Check if the NonPassedArray field is being set (not null), |
| | | 2928 | | // otherwise the nested lambda is not yet emitted, and it is not expected for the va |
| | | 2929 | | il.Demit(OpCodes.Ldfld, NestedLambdaForNonPassedParams.NonPassedParamsField); |
| | | 2930 | | |
| | | 2931 | | // Load the variable from the NonPassedParams array |
| | | 2932 | | EmitLoadConstantInt(il, varIndexInNonPassedParams); |
| | | 2933 | | il.Demit(OpCodes.Ldelem_Ref); |
| | | 2934 | | il.TryEmitUnboxOf(paramType); |
| | | 2935 | | return true; |
| | | 2936 | | } |
| | | 2937 | | } |
| | | 2938 | | } |
| | | 2939 | | } |
| | | 2940 | | |
| | | 2941 | | var valueTypeMemberButNotIndexAccess = isValueType & |
| | | 2942 | | // means the parameter is the instance for the called method or the instance for the member acce |
| | | 2943 | | (parent & (ParentFlags.MemberAccess | ParentFlags.InstanceAccess)) != 0 & |
| | | 2944 | | ( |
| | | 2945 | | // but the variable is not used as an index for the method call or the member access |
| | | 2946 | | // `a[i].Foo()` -> false, see #281 |
| | | 2947 | | // `a[i].Bar` -> false, see #265 |
| | | 2948 | | // `a[i]` -> true, see #413 |
| | | 2949 | | (parent & ParentFlags.IndexAccess) == 0 | |
| | | 2950 | | (parent & (ParentFlags.Call | ParentFlags.MemberAccess)) == 0 |
| | | 2951 | | ); |
| | | 2952 | | |
| | | 2953 | | closure.LastEmitIsAddress = !isParamOrVarByRef & (isPassedRef | valueTypeMemberButNotIndexAccess); |
| | | 2954 | | |
| | | 2955 | | if (closure.LastEmitIsAddress) |
| | | 2956 | | EmitLoadLocalVariableAddress(il, varIndex); |
| | | 2957 | | else if (!isParamOrVarByRef) |
| | | 2958 | | EmitLoadLocalVariable(il, varIndex); |
| | | 2959 | | else |
| | | 2960 | | { |
| | | 2961 | | if (isParamOrVarByRef & isValueType & |
| | | 2962 | | (parent & ParentFlags.BlockResult) != 0 & |
| | | 2963 | | (parent & (ParentFlags.MemberAccess | ParentFlags.Call | ParentFlags.InstanceAccess | Parent |
| | | 2964 | | { |
| | | 2965 | | EmitLoadIndirectlyByRef(il, paramType); |
| | | 2966 | | return true; |
| | | 2967 | | } |
| | | 2968 | | |
| | | 2969 | | var byAddress = isParamOrVarByRef & isPassedRef & isValueType; |
| | | 2970 | | if (byAddress) |
| | | 2971 | | EmitStoreAndLoadLocalVariableAddress(il, varIndex); |
| | | 2972 | | else if ((parent & ParentFlags.InstanceCall) == ParentFlags.InstanceCall) |
| | | 2973 | | EmitLoadLocalVariable(il, varIndex); |
| | | 2974 | | else |
| | | 2975 | | EmitStoreAndLoadLocalVariable(il, varIndex); |
| | | 2976 | | |
| | | 2977 | | // Assume that the var is the last on the stack and just duplicating it, see #346 `Get_array_ele |
| | | 2978 | | // Do only when accessing the variable directly, and not the member and the array element by ind |
| | | 2979 | | if (byAddress) |
| | | 2980 | | il.Demit(OpCodes.Dup); |
| | | 2981 | | else if ((parent & ParentFlags.InstanceAccess) == 0) |
| | | 2982 | | EmitLoadLocalVariable(il, varIndex); |
| | | 2983 | | |
| | | 2984 | | if (isValueType) |
| | | 2985 | | { |
| | | 2986 | | if ((parent & (ParentFlags.Arithmetic | ParentFlags.AssignmentRightValue)) != 0 & |
| | | 2987 | | (parent & (ParentFlags.MemberAccess | ParentFlags.InstanceAccess)) == 0) |
| | | 2988 | | EmitLoadIndirectlyByRef(il, paramType); |
| | | 2989 | | } |
| | | 2990 | | else |
| | | 2991 | | { |
| | | 2992 | | if ((parent & (ParentFlags.Coalesce | ParentFlags.MemberAccess | ParentFlags.IndexAccess | P |
| | | 2993 | | il.Demit(OpCodes.Ldind_Ref); |
| | | 2994 | | } |
| | | 2995 | | } |
| | | 2996 | | return true; |
| | | 2997 | | } |
| | | 2998 | | |
| | | 2999 | | // If not variable then look if the parameter is passed to the current lambda |
| | | 3000 | | var paramIndex = paramExprCount - 1; |
| | | 3001 | | while (paramIndex != -1 && !ReferenceEquals(paramExprs.GetParameter(paramIndex), paramExpr)) --paramInde |
| | | 3002 | | if (paramIndex != -1) |
| | | 3003 | | { |
| | | 3004 | | if ((closure.Status & ClosureStatus.ShouldBeStaticMethod) == 0) |
| | | 3005 | | ++paramIndex; // shift parameter index by one, because the first one will be closure |
| | | 3006 | | |
| | | 3007 | | // means the parameter is the instance for what method is called or the instance for the member acc |
| | | 3008 | | var valueTypeMemberButNotIndexAccess = isValueType & |
| | | 3009 | | // means the parameter is the instance for what method is called or the instance for the member |
| | | 3010 | | (parent & (ParentFlags.MemberAccess | ParentFlags.InstanceAccess)) != 0 & |
| | | 3011 | | // see #352 for the arithmetic |
| | | 3012 | | (parent & ParentFlags.Arithmetic) == 0 & |
| | | 3013 | | ( |
| | | 3014 | | // but the variable is not used as an index for the method call or the member access |
| | | 3015 | | // `a[i].Foo()` -> false, see #281 |
| | | 3016 | | // `a[i].Bar` -> false, see #265 |
| | | 3017 | | // `a[i]` -> true, see #413 |
| | | 3018 | | (parent & ParentFlags.IndexAccess) == 0 | |
| | | 3019 | | (parent & (ParentFlags.Call | ParentFlags.MemberAccess)) == 0 |
| | | 3020 | | ); |
| | | 3021 | | |
| | | 3022 | | closure.LastEmitIsAddress = !isParamOrVarByRef & (isPassedRef | valueTypeMemberButNotIndexAccess); |
| | | 3023 | | |
| | | 3024 | | if (closure.LastEmitIsAddress) |
| | | 3025 | | EmitLoadArgAddress(il, paramIndex); |
| | | 3026 | | else |
| | | 3027 | | EmitLoadArg(il, paramIndex); |
| | | 3028 | | |
| | | 3029 | | // todo: @simplify as it is complex overall and EmitLoadIndirectlyByRef does the Ldind_Ref too |
| | | 3030 | | if (isParamOrVarByRef) |
| | | 3031 | | { |
| | | 3032 | | // todo: @wip requires a cleanup |
| | | 3033 | | if (isValueType) |
| | | 3034 | | { |
| | | 3035 | | // #248 - skip the cases with `ref param.Field` were we are actually want to load the `Field |
| | | 3036 | | // this means the parameter is the argument to the method call and not the instance in the m |
| | | 3037 | | if (!isPassedRef & ( |
| | | 3038 | | ((parent & ParentFlags.Call) != 0 & (parent & ParentFlags.InstanceAccess) == 0) | |
| | | 3039 | | ((parent & ParentFlags.LambdaCall) != 0 & (parent & ParentFlags.ReturnByRef) == 0) |
| | | 3040 | | ) || |
| | | 3041 | | (parent & (ParentFlags.Arithmetic | ParentFlags.AssignmentRightValue)) != 0 & |
| | | 3042 | | (parent & (ParentFlags.MemberAccess | ParentFlags.InstanceAccess | ParentFlags.Assignmen |
| | | 3043 | | EmitLoadIndirectlyByRef(il, paramType); |
| | | 3044 | | } |
| | | 3045 | | else |
| | | 3046 | | { |
| | | 3047 | | if (!isPassedRef & ( |
| | | 3048 | | (parent & (ParentFlags.Call | ParentFlags.LambdaCall)) != 0) || |
| | | 3049 | | (parent & (ParentFlags.Coalesce | ParentFlags.MemberAccess | ParentFlags.IndexAccess | P |
| | | 3050 | | il.Demit(OpCodes.Ldind_Ref); |
| | | 3051 | | } |
| | | 3052 | | } |
| | | 3053 | | return true; |
| | | 3054 | | } |
| | | 3055 | | |
| | | 3056 | | if (isParamOrVarByRef) |
| | | 3057 | | { |
| | | 3058 | | EmitLoadLocalVariableAddress(il, byRefIndex); // todo: @bug? `closure.LastEmitIsAddress = true;` sho |
| | | 3059 | | return true; |
| | | 3060 | | } |
| | | 3061 | | |
| | | 3062 | | // the only possibility that we are here is because we are in the nested lambda, |
| | | 3063 | | // and it uses the parameter or variable from the outer lambda |
| | | 3064 | | var nonPassedParamIndex = closure.NonPassedParameters.TryGetIndex(paramExpr, default(RefEq<ParameterExpr |
| | | 3065 | | if (nonPassedParamIndex == -1) |
| | | 3066 | | return false; |
| | | 3067 | | |
| | | 3068 | | // Load non-passed argument from Closure - closure object is always a first argument |
| | | 3069 | | il.Demit(OpCodes.Ldarg_0); |
| | | 3070 | | il.Demit(OpCodes.Ldfld, ArrayClosureWithNonPassedParamsField); |
| | | 3071 | | EmitLoadConstantInt(il, nonPassedParamIndex); |
| | | 3072 | | il.Demit(OpCodes.Ldelem_Ref); |
| | | 3073 | | return il.TryEmitUnboxOf(paramType); |
| | | 3074 | | } |
| | | 3075 | | |
| | | 3076 | | #if LIGHT_EXPRESSION |
| | | 3077 | | public static bool TryEmitNonByRefNonValueTypeParameter(ParameterExpression paramExpr, IParameterProvider pa |
| | | 3078 | | { |
| | | 3079 | | var paramExprCount = paramExprs.ParameterCount; |
| | | 3080 | | #else |
| | | 3081 | | public static bool TryEmitNonByRefNonValueTypeParameter(ParameterExpression paramExpr, IReadOnlyList<PE> par |
| | | 3082 | | { |
| | | 3083 | | var paramExprCount = paramExprs.Count; |
| | | 3084 | | #endif |
| | | 3085 | | // if parameter is passed through, then just load it on stack |
| | | 3086 | | var paramType = paramExpr.Type; |
| | | 3087 | | var paramIndex = paramExprCount - 1; |
| | | 3088 | | while (paramIndex != -1 && !ReferenceEquals(paramExprs.GetParameter(paramIndex), paramExpr)) |
| | | 3089 | | --paramIndex; |
| | | 3090 | | if (paramIndex != -1) |
| | | 3091 | | { |
| | | 3092 | | if ((closure.Status & ClosureStatus.ShouldBeStaticMethod) == 0) |
| | | 3093 | | ++paramIndex; // shift parameter index by one, because the first one will be closure |
| | | 3094 | | if (closure.LastEmitIsAddress) |
| | | 3095 | | EmitLoadArgAddress(il, paramIndex); |
| | | 3096 | | else |
| | | 3097 | | EmitLoadArg(il, paramIndex); |
| | | 3098 | | return true; |
| | | 3099 | | } |
| | | 3100 | | |
| | | 3101 | | // the only possibility that we are here is because we are in the nested lambda, |
| | | 3102 | | // and it uses the parameter or variable from the outer lambda |
| | | 3103 | | var nonPassedParamIndex = closure.NonPassedParameters.TryGetIndex(paramExpr, default(RefEq<ParameterExpr |
| | | 3104 | | if (nonPassedParamIndex == -1) |
| | | 3105 | | return false; |
| | | 3106 | | |
| | | 3107 | | // Load non-passed argument from Closure - closure object is always a first argument |
| | | 3108 | | il.Demit(OpCodes.Ldarg_0); |
| | | 3109 | | il.Demit(OpCodes.Ldfld, ArrayClosureWithNonPassedParamsField); |
| | | 3110 | | EmitLoadConstantInt(il, nonPassedParamIndex); |
| | | 3111 | | il.Demit(OpCodes.Ldelem_Ref); |
| | | 3112 | | return true; |
| | | 3113 | | } |
| | | 3114 | | |
| | | 3115 | | private static bool TryEmitSimpleUnaryExpression(UnaryExpression expr, ExpressionType nodeType, |
| | | 3116 | | #if LIGHT_EXPRESSION |
| | | 3117 | | IParameterProvider paramExprs, |
| | | 3118 | | #else |
| | | 3119 | | IReadOnlyList<PE> paramExprs, |
| | | 3120 | | #endif |
| | | 3121 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 3122 | | { |
| | | 3123 | | var exprType = expr.Type; |
| | | 3124 | | |
| | | 3125 | | if (!TryEmit(expr.Operand, paramExprs, il, ref closure, setup, parent)) |
| | | 3126 | | return false; |
| | | 3127 | | |
| | | 3128 | | if (nodeType == ExpressionType.TypeAs) |
| | | 3129 | | { |
| | | 3130 | | il.TryEmitBoxOf(expr.Operand.Type); |
| | | 3131 | | il.Demit(OpCodes.Isinst, exprType); |
| | | 3132 | | if (exprType.IsValueType) |
| | | 3133 | | il.Demit(OpCodes.Unbox_Any, exprType); |
| | | 3134 | | } |
| | | 3135 | | else if (nodeType == ExpressionType.IsFalse) |
| | | 3136 | | { |
| | | 3137 | | var falseLabel = il.DefineLabel(); |
| | | 3138 | | var continueLabel = il.DefineLabel(); |
| | | 3139 | | il.Demit(OpCodes.Brfalse, falseLabel); |
| | | 3140 | | il.Demit(OpCodes.Ldc_I4_0); |
| | | 3141 | | il.Demit(OpCodes.Br, continueLabel); |
| | | 3142 | | il.DmarkLabel(falseLabel); |
| | | 3143 | | il.Demit(OpCodes.Ldc_I4_1); |
| | | 3144 | | il.DmarkLabel(continueLabel); |
| | | 3145 | | } |
| | | 3146 | | else if (nodeType == ExpressionType.Increment) |
| | | 3147 | | { |
| | | 3148 | | if (exprType.IsPrimitive) |
| | | 3149 | | { |
| | | 3150 | | if (!TryEmitNumberOne(il, exprType)) |
| | | 3151 | | return false; |
| | | 3152 | | il.Demit(OpCodes.Add); |
| | | 3153 | | } |
| | | 3154 | | else if (!EmitMethodCallCheckForNull(il, exprType.GetMethod("op_Increment"))) |
| | | 3155 | | return false; |
| | | 3156 | | } |
| | | 3157 | | else if (nodeType == ExpressionType.Decrement) |
| | | 3158 | | { |
| | | 3159 | | if (exprType.IsPrimitive) |
| | | 3160 | | { |
| | | 3161 | | if (!TryEmitNumberOne(il, exprType)) |
| | | 3162 | | return false; |
| | | 3163 | | il.Demit(OpCodes.Sub); |
| | | 3164 | | } |
| | | 3165 | | else if (!EmitMethodCallCheckForNull(il, exprType.GetMethod("op_Decrement"))) |
| | | 3166 | | return false; |
| | | 3167 | | } |
| | | 3168 | | else if (nodeType == ExpressionType.Negate | nodeType == ExpressionType.NegateChecked) |
| | | 3169 | | { |
| | | 3170 | | if (exprType.IsPrimitive) |
| | | 3171 | | il.Demit(OpCodes.Neg); |
| | | 3172 | | else if (!EmitMethodCallCheckForNull(il, exprType.GetMethod("op_UnaryNegation"))) |
| | | 3173 | | return false; |
| | | 3174 | | } |
| | | 3175 | | else if (nodeType == ExpressionType.OnesComplement) |
| | | 3176 | | il.Demit(OpCodes.Not); |
| | | 3177 | | else if (nodeType == ExpressionType.Unbox) |
| | | 3178 | | il.Demit(OpCodes.Unbox_Any, exprType); |
| | | 3179 | | // else if (nodeType == ExpressionType.IsTrue) { } |
| | | 3180 | | // else if (nodeType == ExpressionType.UnaryPlus) { } |
| | | 3181 | | |
| | | 3182 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3183 | | } |
| | | 3184 | | |
| | | 3185 | | private static bool TryEmitTypeIsOrEqual(TypeBinaryExpression expr, |
| | | 3186 | | #if LIGHT_EXPRESSION |
| | | 3187 | | IParameterProvider paramExprs, |
| | | 3188 | | #else |
| | | 3189 | | IReadOnlyList<PE> paramExprs, |
| | | 3190 | | #endif |
| | | 3191 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 3192 | | { |
| | | 3193 | | if (!TryEmit(expr.Expression, paramExprs, il, ref closure, setup, parent)) |
| | | 3194 | | return false; |
| | | 3195 | | if ((parent & ParentFlags.IgnoreResult) != 0) |
| | | 3196 | | return true; |
| | | 3197 | | if (expr.NodeType == ExpressionType.TypeIs) |
| | | 3198 | | { |
| | | 3199 | | il.Demit(OpCodes.Isinst, expr.TypeOperand); |
| | | 3200 | | il.Demit(OpCodes.Ldnull); |
| | | 3201 | | il.Demit(OpCodes.Cgt_Un); |
| | | 3202 | | return true; |
| | | 3203 | | } |
| | | 3204 | | if ((setup & CompilerFlags.ThrowOnNotSupportedExpression) != 0) |
| | | 3205 | | throw new NotSupportedExpressionException(Result.NotSupported_TypeEqual); |
| | | 3206 | | return false; |
| | | 3207 | | } |
| | | 3208 | | |
| | | 3209 | | private static bool TryEmitNot(UnaryExpression expr, |
| | | 3210 | | #if LIGHT_EXPRESSION |
| | | 3211 | | IParameterProvider paramExprs, |
| | | 3212 | | #else |
| | | 3213 | | IReadOnlyList<PE> paramExprs, |
| | | 3214 | | #endif |
| | | 3215 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 3216 | | { |
| | | 3217 | | var op = expr.Operand; |
| | | 3218 | | if (op.NodeType == ExpressionType.Equal) |
| | | 3219 | | return TryEmitComparison(((BinaryExpression)op).Left, ((BinaryExpression)op).Right, |
| | | 3220 | | expr.Type, ExpressionType.NotEqual, paramExprs, il, ref closure, setup, parent); |
| | | 3221 | | |
| | | 3222 | | if (!TryEmit(op, paramExprs, il, ref closure, setup, parent)) |
| | | 3223 | | return false; |
| | | 3224 | | |
| | | 3225 | | if ((parent & ParentFlags.IgnoreResult) != 0) |
| | | 3226 | | il.Demit(OpCodes.Pop); |
| | | 3227 | | else if (expr.Type == typeof(bool)) |
| | | 3228 | | EmitEqualToZeroOrNull(il); |
| | | 3229 | | else |
| | | 3230 | | il.Demit(OpCodes.Not); |
| | | 3231 | | return true; |
| | | 3232 | | } |
| | | 3233 | | |
| | | 3234 | | private static bool TryEmitConvert(UnaryExpression expr, |
| | | 3235 | | #if LIGHT_EXPRESSION |
| | | 3236 | | IParameterProvider paramExprs, |
| | | 3237 | | #else |
| | | 3238 | | IReadOnlyList<PE> paramExprs, |
| | | 3239 | | #endif |
| | | 3240 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 3241 | | { |
| | | 3242 | | var opExpr = expr.Operand; |
| | | 3243 | | var sourceType = opExpr.Type; |
| | | 3244 | | var targetType = expr.Type; |
| | | 3245 | | var underlyingNullableSourceType = sourceType.GetUnderlyingNullableTypeOrNull(); |
| | | 3246 | | var underlyingNullableTargetType = targetType.GetUnderlyingNullableTypeOrNull(); |
| | | 3247 | | |
| | | 3248 | | var convertMethod = expr.Method; |
| | | 3249 | | if (convertMethod == null) |
| | | 3250 | | { |
| | | 3251 | | // Try fast the special cases which does not require searching for the conversion operators in princ |
| | | 3252 | | if (parent.IgnoresResult() && (sourceType == targetType || targetType.IsAssignableFrom(sourceType))) |
| | | 3253 | | return TryEmit(opExpr, paramExprs, il, ref closure, setup, parent & ~ParentFlags.InstanceAccess) |
| | | 3254 | | |
| | | 3255 | | // Emit the operand before going to the fast checks below |
| | | 3256 | | if (!TryEmit(opExpr, paramExprs, il, ref closure, setup, parent & ~ParentFlags.IgnoreResult & ~Paren |
| | | 3257 | | return false; |
| | | 3258 | | |
| | | 3259 | | if (sourceType == targetType) |
| | | 3260 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3261 | | |
| | | 3262 | | if (targetType == underlyingNullableSourceType) |
| | | 3263 | | { |
| | | 3264 | | if (!closure.LastEmitIsAddress) |
| | | 3265 | | EmitStoreAndLoadLocalVariableAddress(il, sourceType); |
| | | 3266 | | EmitMethodCall(il, sourceType.GetNullableValueGetterMethod()); |
| | | 3267 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3268 | | } |
| | | 3269 | | |
| | | 3270 | | if (sourceType == underlyingNullableTargetType) |
| | | 3271 | | { |
| | | 3272 | | il.Demit(OpCodes.Newobj, targetType.GetNullableConstructor()); |
| | | 3273 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3274 | | } |
| | | 3275 | | |
| | | 3276 | | if (targetType == typeof(object) && sourceType.IsValueType) |
| | | 3277 | | { |
| | | 3278 | | il.Demit(OpCodes.Box, sourceType); |
| | | 3279 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3280 | | } |
| | | 3281 | | |
| | | 3282 | | if (sourceType == typeof(object) && targetType.IsValueType || |
| | | 3283 | | sourceType == typeof(Enum) && targetType.IsEnum // a special case, see the AutoMapper test `Stri |
| | | 3284 | | ) |
| | | 3285 | | { |
| | | 3286 | | il.Demit(OpCodes.Unbox_Any, targetType); |
| | | 3287 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3288 | | } |
| | | 3289 | | |
| | | 3290 | | // At least just check the assignability of the source to the target type, |
| | | 3291 | | // check only after the checks above for the ValueType or object Type, |
| | | 3292 | | // because their require additional boxing/unboxing operations |
| | | 3293 | | if (targetType.IsAssignableFrom(sourceType)) |
| | | 3294 | | { |
| | | 3295 | | if (sourceType.IsValueType && !targetType.IsValueType) |
| | | 3296 | | il.Demit(OpCodes.Box, sourceType); |
| | | 3297 | | il.Demit(OpCodes.Castclass, targetType); |
| | | 3298 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3299 | | } |
| | | 3300 | | } |
| | | 3301 | | |
| | | 3302 | | // Check implicit / explicit conversion operators on source and then on the target type, |
| | | 3303 | | // check their underlying nullable types, because Nullable does not contain conversion ops, |
| | | 3304 | | // also check inside that it is not primitive type, nor string or enum because those do no contain the c |
| | | 3305 | | // see #73, #451 for examples |
| | | 3306 | | Type methodReturnType = null; |
| | | 3307 | | Type methodParamType = null; |
| | | 3308 | | if (convertMethod != null) |
| | | 3309 | | { |
| | | 3310 | | methodReturnType = convertMethod.ReturnType; |
| | | 3311 | | |
| | | 3312 | | var mParams = convertMethod.GetParameters(); |
| | | 3313 | | Debug.Assert(mParams.Length == 1, $"Expected for the conversion operator to have a single param, but |
| | | 3314 | | methodParamType = mParams[0].ParameterType; |
| | | 3315 | | |
| | | 3316 | | // todo: @wip check if we need to add the ParentFlags.Call here? |
| | | 3317 | | if (!TryEmit(opExpr, paramExprs, il, ref closure, setup, parent & ~ParentFlags.IgnoreResult & ~Paren |
| | | 3318 | | return false; |
| | | 3319 | | } |
| | | 3320 | | else |
| | | 3321 | | { |
| | | 3322 | | // Lookup for the conversion method first in sourceType then in the targetType |
| | | 3323 | | Type underlyingOrNullableSourceType = null; |
| | | 3324 | | for (var lookupCount = 0; lookupCount < 2 & convertMethod == null; ++lookupCount) |
| | | 3325 | | { |
| | | 3326 | | var convOwnerType = lookupCount == 0 |
| | | 3327 | | ? underlyingNullableSourceType ?? sourceType |
| | | 3328 | | : underlyingNullableTargetType ?? targetType; |
| | | 3329 | | |
| | | 3330 | | if (convOwnerType == typeof(string) || convOwnerType.IsEnum || convOwnerType.IsPrimitive) |
| | | 3331 | | continue; |
| | | 3332 | | |
| | | 3333 | | var staticMethods = convOwnerType.GetMethods(BindingFlags.Static | BindingFlags.Public); |
| | | 3334 | | foreach (var m in staticMethods) |
| | | 3335 | | { |
| | | 3336 | | if (!m.IsSpecialName) |
| | | 3337 | | continue; |
| | | 3338 | | |
| | | 3339 | | // Method return type should be convertible to target type, |
| | | 3340 | | // and therefore it does not check for the method return type of Nullable<targetType> |
| | | 3341 | | // because it cannot be coalesced to targetType without loss of information |
| | | 3342 | | methodReturnType = m.ReturnType; |
| | | 3343 | | if (methodReturnType != targetType && methodReturnType != underlyingNullableTargetType || |
| | | 3344 | | m.Name != "op_Implicit" && m.Name != "op_Explicit") |
| | | 3345 | | continue; |
| | | 3346 | | |
| | | 3347 | | var operatorParams = m.GetParameters(); |
| | | 3348 | | Debug.Assert(operatorParams.Length == 1, $"Expected for the conversion operator to have a si |
| | | 3349 | | |
| | | 3350 | | methodParamType = operatorParams[0].ParameterType; |
| | | 3351 | | if (methodParamType == sourceType) |
| | | 3352 | | { |
| | | 3353 | | convertMethod = m; |
| | | 3354 | | break; |
| | | 3355 | | } |
| | | 3356 | | |
| | | 3357 | | // This next check is only valid if the source type is the ValueType, so it can be either a |
| | | 3358 | | if (sourceType.IsValueType) |
| | | 3359 | | { |
| | | 3360 | | // Check for all variants of the source type which maybe either underlying nullable or n |
| | | 3361 | | // Calculate it once because less work is better. |
| | | 3362 | | underlyingOrNullableSourceType ??= underlyingNullableSourceType ?? sourceType.GetNullabl |
| | | 3363 | | if (methodParamType == underlyingOrNullableSourceType) |
| | | 3364 | | { |
| | | 3365 | | convertMethod = m; |
| | | 3366 | | break; |
| | | 3367 | | } |
| | | 3368 | | } |
| | | 3369 | | } |
| | | 3370 | | } |
| | | 3371 | | } |
| | | 3372 | | |
| | | 3373 | | if (convertMethod != null) |
| | | 3374 | | { |
| | | 3375 | | Debug.Assert(methodParamType != null & methodReturnType != null, |
| | | 3376 | | "Expecting that actual source and return type are set for the found conversion operator method") |
| | | 3377 | | |
| | | 3378 | | // For the both nullable source and target types, |
| | | 3379 | | // first check the source value for null and return null without calling the conversion method, othe |
| | | 3380 | | if (methodParamType == underlyingNullableSourceType & underlyingNullableTargetType != null) |
| | | 3381 | | { |
| | | 3382 | | var sourceVarIndex = EmitStoreAndLoadLocalVariableAddress(il, sourceType); |
| | | 3383 | | EmitMethodCall(il, sourceType.GetNullableHasValueGetterMethod()); |
| | | 3384 | | |
| | | 3385 | | var labelSourceHasValue = il.DefineLabel(); |
| | | 3386 | | il.Demit(OpCodes.Brtrue_S, labelSourceHasValue); // Jump to this label when the source has a val |
| | | 3387 | | |
| | | 3388 | | // Otherwise, emit and load the default nullable target without value, e.g. `default(Nullable<TT |
| | | 3389 | | // then... the conversion is completed, so jumping to the done label |
| | | 3390 | | EmitLoadLocalVariable(il, InitValueTypeVariable(il, targetType)); |
| | | 3391 | | var labelConversionDone = il.DefineLabel(); |
| | | 3392 | | il.Demit(OpCodes.Br_S, labelConversionDone); |
| | | 3393 | | |
| | | 3394 | | // If the nullable source has the value, do the conversion |
| | | 3395 | | il.DmarkLabel(labelSourceHasValue); |
| | | 3396 | | EmitLoadLocalVariableAddress(il, sourceVarIndex); |
| | | 3397 | | il.Demit(OpCodes.Ldfld, sourceType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 3398 | | |
| | | 3399 | | EmitMethodCallOrVirtualCall(il, convertMethod); |
| | | 3400 | | |
| | | 3401 | | // Wrap the conversion result into the target type only if the conversion method return the unde |
| | | 3402 | | // otherwise we done |
| | | 3403 | | if (methodReturnType == underlyingNullableTargetType) |
| | | 3404 | | il.Demit(OpCodes.Newobj, targetType.GetNullableConstructor()); |
| | | 3405 | | |
| | | 3406 | | il.DmarkLabel(labelConversionDone); |
| | | 3407 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3408 | | } |
| | | 3409 | | |
| | | 3410 | | if (methodParamType == underlyingNullableSourceType) |
| | | 3411 | | { |
| | | 3412 | | EmitStoreAndLoadLocalVariableAddress(il, sourceType); |
| | | 3413 | | EmitMethodCall(il, sourceType.GetNullableValueGetterMethod()); |
| | | 3414 | | } |
| | | 3415 | | else if (methodParamType != sourceType) // This is an unlikely case of Target(Source? source) |
| | | 3416 | | { |
| | | 3417 | | Debug.Assert(methodParamType.GetUnderlyingNullableTypeOrNull() == sourceType, "Expecting that th |
| | | 3418 | | il.Demit(OpCodes.Newobj, methodParamType.GetNullableConstructor()); |
| | | 3419 | | } |
| | | 3420 | | |
| | | 3421 | | EmitMethodCallOrVirtualCall(il, convertMethod); |
| | | 3422 | | |
| | | 3423 | | if (methodReturnType == underlyingNullableTargetType) |
| | | 3424 | | il.Demit(OpCodes.Newobj, targetType.GetNullableConstructor()); |
| | | 3425 | | |
| | | 3426 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3427 | | } |
| | | 3428 | | |
| | | 3429 | | if (underlyingNullableSourceType != null & underlyingNullableTargetType != null) |
| | | 3430 | | { |
| | | 3431 | | var sourceVarIndex = EmitStoreAndLoadLocalVariableAddress(il, sourceType); |
| | | 3432 | | EmitMethodCall(il, sourceType.GetNullableHasValueGetterMethod()); |
| | | 3433 | | |
| | | 3434 | | var labelSourceHasValue = il.DefineLabel(); |
| | | 3435 | | il.Demit(OpCodes.Brtrue_S, labelSourceHasValue); // Jump here when the source has a value |
| | | 3436 | | |
| | | 3437 | | // Otherwise, emit and load the default nullable target without value, e.g. `default(Nullable<TTarge |
| | | 3438 | | // and... the conversion is completed, so jumping to the done label |
| | | 3439 | | EmitLoadLocalVariable(il, InitValueTypeVariable(il, targetType)); |
| | | 3440 | | var labelConversionDone = il.DefineLabel(); |
| | | 3441 | | il.Demit(OpCodes.Br_S, labelConversionDone); |
| | | 3442 | | |
| | | 3443 | | // If the nullable source has the value, do the conversion |
| | | 3444 | | il.DmarkLabel(labelSourceHasValue); |
| | | 3445 | | EmitLoadLocalVariableAddress(il, sourceVarIndex); |
| | | 3446 | | il.Demit(OpCodes.Ldfld, sourceType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 3447 | | |
| | | 3448 | | if (!TryEmitPrimitiveValueConvert(underlyingNullableSourceType, underlyingNullableTargetType, il, ex |
| | | 3449 | | return false; |
| | | 3450 | | |
| | | 3451 | | il.Demit(OpCodes.Newobj, targetType.GetNullableConstructor()); |
| | | 3452 | | |
| | | 3453 | | // We done here. |
| | | 3454 | | il.DmarkLabel(labelConversionDone); |
| | | 3455 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3456 | | } |
| | | 3457 | | |
| | | 3458 | | if (underlyingNullableTargetType != null) // sourceType is NOT nullable here (checked above) |
| | | 3459 | | { |
| | | 3460 | | if (!underlyingNullableTargetType.IsEnum && |
| | | 3461 | | !TryEmitPrimitiveValueConvert(sourceType, underlyingNullableTargetType, il, isChecked: false)) |
| | | 3462 | | return false; |
| | | 3463 | | il.Demit(OpCodes.Newobj, targetType.GetNullableConstructor()); |
| | | 3464 | | } |
| | | 3465 | | else // targetType is NOT nullable here (checked above) |
| | | 3466 | | { |
| | | 3467 | | if (targetType.IsEnum) |
| | | 3468 | | { |
| | | 3469 | | targetType = Enum.GetUnderlyingType(targetType); |
| | | 3470 | | if (targetType == sourceType) |
| | | 3471 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3472 | | } |
| | | 3473 | | |
| | | 3474 | | // fixes #159 |
| | | 3475 | | if (underlyingNullableSourceType != null) |
| | | 3476 | | { |
| | | 3477 | | EmitStoreAndLoadLocalVariableAddress(il, sourceType); |
| | | 3478 | | EmitMethodCall(il, sourceType.GetNullableValueGetterMethod()); |
| | | 3479 | | } |
| | | 3480 | | |
| | | 3481 | | // Cast as the last resort and let's it fail if unlucky |
| | | 3482 | | if (!TryEmitPrimitiveValueConvert(underlyingNullableSourceType ?? sourceType, targetType, il, expr.N |
| | | 3483 | | { |
| | | 3484 | | il.TryEmitBoxOf(sourceType); |
| | | 3485 | | il.Demit(OpCodes.Castclass, targetType); |
| | | 3486 | | } |
| | | 3487 | | } |
| | | 3488 | | |
| | | 3489 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 3490 | | } |
| | | 3491 | | |
| | | 3492 | | private static bool TryEmitPrimitiveValueConvert(Type sourceType, Type targetType, ILGenerator il, bool isCh |
| | | 3493 | | { |
| | | 3494 | | switch (Type.GetTypeCode(targetType)) |
| | | 3495 | | { |
| | | 3496 | | case TypeCode.SByte: |
| | | 3497 | | il.Demit(isChecked ? OpCodes.Conv_Ovf_I1 : OpCodes.Conv_I1); |
| | | 3498 | | break; |
| | | 3499 | | case TypeCode.Byte: |
| | | 3500 | | il.Demit(isChecked ? OpCodes.Conv_Ovf_U1 : OpCodes.Conv_U1); |
| | | 3501 | | break; |
| | | 3502 | | case TypeCode.Int16: |
| | | 3503 | | il.Demit(isChecked ? OpCodes.Conv_Ovf_I2 : OpCodes.Conv_I2); |
| | | 3504 | | break; |
| | | 3505 | | case TypeCode.Int32: |
| | | 3506 | | il.Demit(isChecked ? OpCodes.Conv_Ovf_I4 : OpCodes.Conv_I4); |
| | | 3507 | | break; |
| | | 3508 | | case TypeCode.Int64: |
| | | 3509 | | il.Demit(isChecked ? OpCodes.Conv_Ovf_I8 : OpCodes.Conv_I8); |
| | | 3510 | | break; |
| | | 3511 | | case TypeCode.Double: |
| | | 3512 | | il.Demit(OpCodes.Conv_R8); |
| | | 3513 | | break; |
| | | 3514 | | case TypeCode.Single: |
| | | 3515 | | if (sourceType == typeof(uint)) |
| | | 3516 | | il.Demit(OpCodes.Conv_R_Un); |
| | | 3517 | | il.Demit(OpCodes.Conv_R4); |
| | | 3518 | | break; |
| | | 3519 | | case TypeCode.UInt16: |
| | | 3520 | | case TypeCode.Char: |
| | | 3521 | | il.Demit(isChecked ? OpCodes.Conv_Ovf_U2 : OpCodes.Conv_U2); |
| | | 3522 | | break; |
| | | 3523 | | case TypeCode.UInt32: |
| | | 3524 | | il.Demit(isChecked ? OpCodes.Conv_Ovf_U4 : OpCodes.Conv_U4); |
| | | 3525 | | break; |
| | | 3526 | | case TypeCode.UInt64: |
| | | 3527 | | il.Demit(isChecked ? OpCodes.Conv_Ovf_U8 : OpCodes.Conv_U8); // should we consider if sourceType |
| | | 3528 | | break; |
| | | 3529 | | default: |
| | | 3530 | | // todo: @feature for net7+ add Half, Int128, UInt128 |
| | | 3531 | | return false; |
| | | 3532 | | } |
| | | 3533 | | return true; |
| | | 3534 | | } |
| | | 3535 | | |
| | | 3536 | | public static bool TryEmitConstant(ConstantExpression expr, Type exprType, ILGenerator il, ref ClosureInfo c |
| | | 3537 | | { |
| | | 3538 | | var ok = false; |
| | | 3539 | | #if LIGHT_EXPRESSION |
| | | 3540 | | if (expr == NullConstant) |
| | | 3541 | | { |
| | | 3542 | | il.Demit(OpCodes.Ldnull); |
| | | 3543 | | ok = true; |
| | | 3544 | | } |
| | | 3545 | | else if (expr == FalseConstant | expr == ZeroConstant) |
| | | 3546 | | { |
| | | 3547 | | il.Demit(OpCodes.Ldc_I4_0); |
| | | 3548 | | ok = true; |
| | | 3549 | | } |
| | | 3550 | | else if (expr == TrueConstant | expr == OneConstant) |
| | | 3551 | | { |
| | | 3552 | | il.Demit(OpCodes.Ldc_I4_1); |
| | | 3553 | | ok = true; |
| | | 3554 | | } |
| | | 3555 | | else if (expr is IntConstantExpression n) |
| | | 3556 | | { |
| | | 3557 | | EmitLoadConstantInt(il, (int)n.Value); |
| | | 3558 | | ok = true; |
| | | 3559 | | } |
| | | 3560 | | #endif |
| | | 3561 | | if (!ok) |
| | | 3562 | | { |
| | | 3563 | | var constValue = expr.Value; |
| | | 3564 | | if (constValue != null) |
| | | 3565 | | ok = TryEmitConstant(closure.ContainsConstantsOrNestedLambdas(), exprType, constValue.GetType(), |
| | | 3566 | | else if (exprType.IsValueType) |
| | | 3567 | | // null for a value type and yep, this is a proper way to emit the Nullable null |
| | | 3568 | | ok = EmitLoadLocalVariable(il, InitValueTypeVariable(il, exprType)); |
| | | 3569 | | else |
| | | 3570 | | { |
| | | 3571 | | il.Demit(OpCodes.Ldnull); |
| | | 3572 | | ok = true; |
| | | 3573 | | } |
| | | 3574 | | } |
| | | 3575 | | |
| | | 3576 | | if (ok & byRefIndex != -1) |
| | | 3577 | | EmitStoreAndLoadLocalVariableAddress(il, exprType); |
| | | 3578 | | return ok; |
| | | 3579 | | } |
| | | 3580 | | |
| | | 3581 | | [MethodImpl((MethodImplOptions)256)] |
| | | 3582 | | public static bool TryEmitNotNullConstant(bool considerClosure, object constValue, ILGenerator il, ref Closu |
| | | 3583 | | { |
| | | 3584 | | Debug.Assert(constValue != null, "Expecting that the constant value is not null here"); |
| | | 3585 | | var constType = constValue.GetType(); |
| | | 3586 | | var ok = TryEmitConstant(considerClosure, null, constType, constValue, il, ref closure, byRefIndex); |
| | | 3587 | | if (ok & byRefIndex != -1) |
| | | 3588 | | EmitStoreAndLoadLocalVariableAddress(il, constType); |
| | | 3589 | | return ok; |
| | | 3590 | | } |
| | | 3591 | | |
| | | 3592 | | public static bool TryEmitConstant(bool considerClosure, Type exprType, Type constType, object constValue, I |
| | | 3593 | | int byRefIndex = -1, FieldInfo refField = null) |
| | | 3594 | | { |
| | | 3595 | | if (exprType == null) |
| | | 3596 | | exprType = constType; |
| | | 3597 | | #if LIGHT_EXPRESSION |
| | | 3598 | | if (considerClosure && (refField != null || IsClosureBoundConstant(constValue, constType))) |
| | | 3599 | | #else |
| | | 3600 | | if (considerClosure && IsClosureBoundConstant(constValue, constType)) |
| | | 3601 | | #endif |
| | | 3602 | | { |
| | | 3603 | | var constIndex = closure.Constants.TryGetIndex(constValue, default(RefEq<object>)); |
| | | 3604 | | if (constIndex == -1) |
| | | 3605 | | return false; // todo: @check should we throw an exception instead? |
| | | 3606 | | |
| | | 3607 | | var varIndex = closure.ConstantUsageThenVarIndex[constIndex] - 1; |
| | | 3608 | | if (varIndex > 0) |
| | | 3609 | | EmitLoadLocalVariable(il, varIndex); |
| | | 3610 | | else |
| | | 3611 | | { |
| | | 3612 | | EmitLoadClosureArrayItem(il, constIndex); |
| | | 3613 | | #if LIGHT_EXPRESSION |
| | | 3614 | | // Handle the loading of the ref field if the constant usage is only once, |
| | | 3615 | | // for the multiple usages the field was loaded and saved into variable in `EmitLoadConstantsAnd |
| | | 3616 | | if (refField != null) |
| | | 3617 | | { |
| | | 3618 | | il.Demit(OpCodes.Ldfld, refField); |
| | | 3619 | | if (refField.FieldType != typeof(object)) |
| | | 3620 | | return true; // for typed constant we done, |
| | | 3621 | | // but the object ref field requires the normal constant treatment with unboxing of the Valu |
| | | 3622 | | exprType = constType = ((ConstantExpression)constValue).Value.GetType(); |
| | | 3623 | | } |
| | | 3624 | | #endif |
| | | 3625 | | if (constType.IsValueType) |
| | | 3626 | | il.Demit(OpCodes.Unbox_Any, constType); |
| | | 3627 | | #if NETFRAMEWORK |
| | | 3628 | | else |
| | | 3629 | | // The cast is probably required only for the Full CLR, |
| | | 3630 | | // e.g. `Test_283_Case6_MappingSchemaTests_CultureInfo_VerificationException`. |
| | | 3631 | | // .NET Core does not seem to care about verifiability and it's faster without the explicit |
| | | 3632 | | il.Demit(OpCodes.Castclass, constType); |
| | | 3633 | | #endif |
| | | 3634 | | } |
| | | 3635 | | } |
| | | 3636 | | else |
| | | 3637 | | { |
| | | 3638 | | if (constValue is string s) |
| | | 3639 | | { |
| | | 3640 | | il.Demit(s, OpCodes.Ldstr); |
| | | 3641 | | return true; |
| | | 3642 | | } |
| | | 3643 | | if (constValue is Type t) |
| | | 3644 | | { |
| | | 3645 | | il.Demit(OpCodes.Ldtoken, t); |
| | | 3646 | | return EmitMethodCall(il, GetTypeFromHandleMethod); |
| | | 3647 | | } |
| | | 3648 | | if (!TryEmitPrimitiveOrEnumOrDecimalConstant(il, constValue, constType)) |
| | | 3649 | | return false; |
| | | 3650 | | } |
| | | 3651 | | |
| | | 3652 | | if (exprType != constType && constType.IsValueType) |
| | | 3653 | | { |
| | | 3654 | | if (exprType.IsNullable()) |
| | | 3655 | | il.Demit(OpCodes.Newobj, exprType.GetNullableConstructor()); |
| | | 3656 | | else if (exprType == typeof(object)) |
| | | 3657 | | il.Demit(OpCodes.Box, constType); // using normal type for Enum instead of underlying type |
| | | 3658 | | } |
| | | 3659 | | return true; |
| | | 3660 | | } |
| | | 3661 | | |
| | | 3662 | | /// <summary>Emit the IL for the value of the primitive type.</summary> |
| | | 3663 | | public static bool TryEmitPrimitiveOrEnumOrDecimalConstant(ILGenerator il, object constValue, Type constType |
| | | 3664 | | { |
| | | 3665 | | if (constType.IsEnum) |
| | | 3666 | | constType = Enum.GetUnderlyingType(constType); |
| | | 3667 | | |
| | | 3668 | | switch (Type.GetTypeCode(constType)) |
| | | 3669 | | { |
| | | 3670 | | case TypeCode.Boolean: |
| | | 3671 | | il.Demit((bool)constValue ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0); // todo: @perf check for Light |
| | | 3672 | | break; |
| | | 3673 | | case TypeCode.Char: |
| | | 3674 | | EmitLoadConstantInt(il, (char)constValue); |
| | | 3675 | | break; |
| | | 3676 | | case TypeCode.SByte: |
| | | 3677 | | EmitLoadConstantInt(il, (sbyte)constValue); |
| | | 3678 | | break; |
| | | 3679 | | case TypeCode.Byte: |
| | | 3680 | | EmitLoadConstantInt(il, (byte)constValue); |
| | | 3681 | | break; |
| | | 3682 | | case TypeCode.Int16: |
| | | 3683 | | EmitLoadConstantInt(il, (short)constValue); |
| | | 3684 | | break; |
| | | 3685 | | case TypeCode.UInt16: |
| | | 3686 | | EmitLoadConstantInt(il, (ushort)constValue); |
| | | 3687 | | break; |
| | | 3688 | | case TypeCode.Int32: |
| | | 3689 | | EmitLoadConstantInt(il, (int)constValue); |
| | | 3690 | | break; |
| | | 3691 | | case TypeCode.UInt32: |
| | | 3692 | | unchecked |
| | | 3693 | | { |
| | | 3694 | | EmitLoadConstantInt(il, (int)(uint)constValue); |
| | | 3695 | | } |
| | | 3696 | | break; |
| | | 3697 | | case TypeCode.Int64: |
| | | 3698 | | il.Demit(OpCodes.Ldc_I8, (long)constValue); |
| | | 3699 | | break; |
| | | 3700 | | case TypeCode.UInt64: |
| | | 3701 | | unchecked |
| | | 3702 | | { |
| | | 3703 | | il.Demit(OpCodes.Ldc_I8, (long)(ulong)constValue); |
| | | 3704 | | } |
| | | 3705 | | break; |
| | | 3706 | | case TypeCode.Double: |
| | | 3707 | | il.Demit(OpCodes.Ldc_R8, (double)constValue); |
| | | 3708 | | break; |
| | | 3709 | | case TypeCode.Single: |
| | | 3710 | | il.Demit(OpCodes.Ldc_R4, (float)constValue); |
| | | 3711 | | break; |
| | | 3712 | | case TypeCode.Decimal: |
| | | 3713 | | EmitDecimalConstant((decimal)constValue, il); |
| | | 3714 | | break; |
| | | 3715 | | // todo: @feature for net7 add Half, Int128, UInt128 |
| | | 3716 | | default: |
| | | 3717 | | if (constType == typeof(IntPtr)) |
| | | 3718 | | { |
| | | 3719 | | il.Demit(OpCodes.Ldc_I8, ((IntPtr)constValue).ToInt64()); |
| | | 3720 | | break; |
| | | 3721 | | } |
| | | 3722 | | else if (constType == typeof(UIntPtr)) |
| | | 3723 | | { |
| | | 3724 | | unchecked |
| | | 3725 | | { |
| | | 3726 | | il.Demit(OpCodes.Ldc_I8, (long)((UIntPtr)constValue).ToUInt64()); |
| | | 3727 | | } |
| | | 3728 | | break; |
| | | 3729 | | } |
| | | 3730 | | return false; |
| | | 3731 | | } |
| | | 3732 | | return true; |
| | | 3733 | | } |
| | | 3734 | | |
| | | 3735 | | // todo: @perf optimize using Type.TypeCode |
| | | 3736 | | internal static bool TryEmitNumberOne(ILGenerator il, Type type) |
| | | 3737 | | { |
| | | 3738 | | if (type == typeof(int) || type == typeof(char) || type == typeof(short) || |
| | | 3739 | | type == typeof(byte) || type == typeof(ushort) || type == typeof(sbyte) || |
| | | 3740 | | type == typeof(uint)) |
| | | 3741 | | il.Demit(OpCodes.Ldc_I4_1); |
| | | 3742 | | else if (type == typeof(long) || type == typeof(ulong) || |
| | | 3743 | | type == typeof(IntPtr) || type == typeof(UIntPtr)) |
| | | 3744 | | il.Demit(OpCodes.Ldc_I8, (long)1); |
| | | 3745 | | else if (type == typeof(float)) |
| | | 3746 | | il.Demit(OpCodes.Ldc_R4, 1f); |
| | | 3747 | | else if (type == typeof(double)) |
| | | 3748 | | il.Demit(OpCodes.Ldc_R8, 1d); |
| | | 3749 | | else |
| | | 3750 | | return false; |
| | | 3751 | | return true; |
| | | 3752 | | } |
| | | 3753 | | |
| | | 3754 | | [MethodImpl((MethodImplOptions)256)] |
| | | 3755 | | private static void EmitLoadClosureArrayItem(ILGenerator il, int i) |
| | | 3756 | | { |
| | | 3757 | | il.Demit(OpCodes.Ldloc_0);// SHOULD BE always at 0 location; load array field variable on the stack |
| | | 3758 | | EmitLoadConstantInt(il, i); |
| | | 3759 | | il.Demit(OpCodes.Ldelem_Ref); |
| | | 3760 | | } |
| | | 3761 | | |
| | | 3762 | | internal static void EmitLoadConstantsAndNestedLambdasIntoVars(ILGenerator il, ref ClosureInfo closure) |
| | | 3763 | | { |
| | | 3764 | | // todo: @perf load the field to `var` only if the constants are more than 1 |
| | | 3765 | | // Load constants array field from Closure and store it into the variable |
| | | 3766 | | il.Demit(OpCodes.Ldarg_0); |
| | | 3767 | | il.Demit(OpCodes.Ldfld, ArrayClosureArrayField); |
| | | 3768 | | EmitStoreLocalVariable(il, il.GetNextLocalVarIndex(typeof(object[]))); // always does Stloc_0, because i |
| | | 3769 | | |
| | | 3770 | | // important that the constant will contain the nested lambdas as well in the same array after the actua |
| | | 3771 | | // so the Count indicates where the constants end |
| | | 3772 | | var constItems = closure.Constants.Items; |
| | | 3773 | | var constCount = closure.Constants.Count; |
| | | 3774 | | |
| | | 3775 | | short varIndex; |
| | | 3776 | | for (var i = 0; i < constCount; i++) |
| | | 3777 | | { |
| | | 3778 | | ref var constUsage = ref closure.ConstantUsageThenVarIndex.GetSurePresentItemRef(i); |
| | | 3779 | | if (constUsage > 1) // todo: @perf should we proceed to do this or simplify and remove the usages fo |
| | | 3780 | | { |
| | | 3781 | | EmitLoadClosureArrayItem(il, i); |
| | | 3782 | | var constValue = constItems[i]; |
| | | 3783 | | var constType = constValue.GetType(); |
| | | 3784 | | if (constType.IsValueType) |
| | | 3785 | | il.Demit(OpCodes.Unbox_Any, constType); |
| | | 3786 | | |
| | | 3787 | | varIndex = (short)il.GetNextLocalVarIndex(constType); |
| | | 3788 | | constUsage = (short)(varIndex + 1); // to distinguish from the default 1 |
| | | 3789 | | EmitStoreLocalVariable(il, varIndex); |
| | | 3790 | | } |
| | | 3791 | | } |
| | | 3792 | | |
| | | 3793 | | var nestedLambdasCount = closure.NestedLambdas.Count; |
| | | 3794 | | if (nestedLambdasCount != 0) |
| | | 3795 | | { |
| | | 3796 | | var nestedLambdas = closure.NestedLambdas.Items; |
| | | 3797 | | for (var i = 0; i < nestedLambdasCount; i++) |
| | | 3798 | | { |
| | | 3799 | | var lambdaInfo = nestedLambdas[i]; |
| | | 3800 | | EmitLoadClosureArrayItem(il, constCount + i); |
| | | 3801 | | lambdaInfo.LambdaVarIndex = varIndex = (short)il.GetNextLocalVarIndex(lambdaInfo.Lambda.GetType( |
| | | 3802 | | EmitStoreLocalVariable(il, varIndex); |
| | | 3803 | | } |
| | | 3804 | | } |
| | | 3805 | | } |
| | | 3806 | | |
| | | 3807 | | private static ConstructorInfo _decimalIntCtor, _decimalLongCtor; |
| | | 3808 | | private static FieldInfo _decimalZero, _decimalOne; |
| | | 3809 | | |
| | | 3810 | | private static void EmitDecimalConstant(decimal value, ILGenerator il) |
| | | 3811 | | { |
| | | 3812 | | if (value == 0 | value == 1) |
| | | 3813 | | { |
| | | 3814 | | // emit Decimal.Zero or Decimal.One instead of new Decimal(0) or new Decimal(1) |
| | | 3815 | | var field = value == 0 ? |
| | | 3816 | | _decimalZero ?? (_decimalZero = typeof(Decimal).GetField(nameof(Decimal.Zero))) : |
| | | 3817 | | _decimalOne ?? (_decimalOne = typeof(Decimal).GetField(nameof(Decimal.One))); |
| | | 3818 | | il.Demit(OpCodes.Ldsfld, field); |
| | | 3819 | | return; |
| | | 3820 | | } |
| | | 3821 | | |
| | | 3822 | | //check if decimal has decimal places, if not use shorter IL code (constructor from int or long) |
| | | 3823 | | if (value % 1 == 0) |
| | | 3824 | | { |
| | | 3825 | | if (value >= int.MinValue && value <= int.MaxValue) |
| | | 3826 | | { |
| | | 3827 | | EmitLoadConstantInt(il, decimal.ToInt32(value)); |
| | | 3828 | | il.Demit(OpCodes.Newobj, _decimalIntCtor ?? (_decimalIntCtor = typeof(decimal).FindSingleParamCo |
| | | 3829 | | return; |
| | | 3830 | | } |
| | | 3831 | | |
| | | 3832 | | if (value >= long.MinValue && value <= long.MaxValue) |
| | | 3833 | | { |
| | | 3834 | | il.Demit(OpCodes.Ldc_I8, decimal.ToInt64(value)); |
| | | 3835 | | il.Demit(OpCodes.Newobj, _decimalLongCtor ?? (_decimalLongCtor = typeof(decimal).FindSingleParam |
| | | 3836 | | return; |
| | | 3837 | | } |
| | | 3838 | | } |
| | | 3839 | | |
| | | 3840 | | if (value == decimal.MinValue) |
| | | 3841 | | { |
| | | 3842 | | il.Demit(OpCodes.Ldsfld, typeof(decimal).GetField(nameof(decimal.MinValue))); |
| | | 3843 | | return; |
| | | 3844 | | } |
| | | 3845 | | |
| | | 3846 | | if (value == decimal.MaxValue) |
| | | 3847 | | { |
| | | 3848 | | il.Demit(OpCodes.Ldsfld, typeof(decimal).GetField(nameof(decimal.MaxValue))); |
| | | 3849 | | return; |
| | | 3850 | | } |
| | | 3851 | | |
| | | 3852 | | var parts = decimal.GetBits(value); |
| | | 3853 | | var sign = (parts[3] & 0x80000000) != 0; |
| | | 3854 | | var scale = (byte)((parts[3] >> 16) & 0x7F); |
| | | 3855 | | |
| | | 3856 | | EmitLoadConstantInt(il, parts[0]); |
| | | 3857 | | EmitLoadConstantInt(il, parts[1]); |
| | | 3858 | | EmitLoadConstantInt(il, parts[2]); |
| | | 3859 | | |
| | | 3860 | | il.Demit(sign ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0); |
| | | 3861 | | EmitLoadConstantInt(il, scale); |
| | | 3862 | | il.Demit(OpCodes.Conv_U1); |
| | | 3863 | | il.Demit(OpCodes.Newobj, _decimalCtor.Value); |
| | | 3864 | | } |
| | | 3865 | | |
| | | 3866 | | private static readonly Lazy<ConstructorInfo> _decimalCtor = new Lazy<ConstructorInfo>(() => |
| | | 3867 | | { |
| | | 3868 | | foreach (var ctor in typeof(decimal).GetTypeInfo().DeclaredConstructors) |
| | | 3869 | | if (ctor.GetParameters().Length == 5) |
| | | 3870 | | return ctor; |
| | | 3871 | | return null; |
| | | 3872 | | }); |
| | | 3873 | | |
| | | 3874 | | [MethodImpl((MethodImplOptions)256)] |
| | | 3875 | | private static int InitValueTypeVariable(ILGenerator il, Type exprType, int valueVarIndex) |
| | | 3876 | | { |
| | | 3877 | | Debug.Assert(valueVarIndex != -1); |
| | | 3878 | | EmitLoadLocalVariableAddress(il, valueVarIndex); |
| | | 3879 | | il.Demit(OpCodes.Initobj, exprType); |
| | | 3880 | | return valueVarIndex; |
| | | 3881 | | } |
| | | 3882 | | |
| | | 3883 | | // todo: @perf merge with EmitLoadLocalVariable |
| | | 3884 | | private static int InitValueTypeVariable(ILGenerator il, Type exprType) => |
| | | 3885 | | InitValueTypeVariable(il, exprType, il.GetNextLocalVarIndex(exprType)); |
| | | 3886 | | |
| | | 3887 | | #if LIGHT_EXPRESSION |
| | | 3888 | | private static bool EmitNewArrayBounds(NewArrayExpression expr, IParameterProvider paramExprs, |
| | | 3889 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 3890 | | { |
| | | 3891 | | var bounds = (IArgumentProvider)expr; |
| | | 3892 | | var boundCount = bounds.ArgumentCount; |
| | | 3893 | | #else |
| | | 3894 | | private static bool EmitNewArrayBounds(NewArrayExpression expr, IReadOnlyList<PE> paramExprs, |
| | | 3895 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 3896 | | { |
| | | 3897 | | var bounds = expr.Expressions; |
| | | 3898 | | var boundCount = bounds.Count; |
| | | 3899 | | #endif |
| | | 3900 | | if (boundCount == 1) |
| | | 3901 | | { |
| | | 3902 | | if (!TryEmit(bounds.GetArgument(0), paramExprs, il, ref closure, setup, parent)) |
| | | 3903 | | return false; |
| | | 3904 | | var elemType = expr.Type.GetElementType(); |
| | | 3905 | | if (elemType == null) |
| | | 3906 | | return false; |
| | | 3907 | | il.Demit(OpCodes.Newarr, elemType); |
| | | 3908 | | } |
| | | 3909 | | else |
| | | 3910 | | { |
| | | 3911 | | for (var i = 0; i < boundCount; i++) |
| | | 3912 | | if (!TryEmit(bounds.GetArgument(i), paramExprs, il, ref closure, setup, parent)) |
| | | 3913 | | return false; |
| | | 3914 | | il.Demit(OpCodes.Newobj, expr.Type.GetTypeInfo().DeclaredConstructors.GetFirst()); |
| | | 3915 | | } |
| | | 3916 | | return true; |
| | | 3917 | | } |
| | | 3918 | | |
| | | 3919 | | #if LIGHT_EXPRESSION |
| | | 3920 | | private static bool EmitNewArrayInit(NewArrayExpression expr, IParameterProvider paramExprs, |
| | | 3921 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 3922 | | { |
| | | 3923 | | #else |
| | | 3924 | | private static bool EmitNewArrayInit(NewArrayExpression expr, IReadOnlyList<PE> paramExprs, |
| | | 3925 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 3926 | | { |
| | | 3927 | | #endif |
| | | 3928 | | var arrayType = expr.Type; |
| | | 3929 | | if (arrayType.GetArrayRank() > 1) |
| | | 3930 | | return false; // todo: @feature multi-dimensional array initializers are not supported yet, they als |
| | | 3931 | | |
| | | 3932 | | var elemType = arrayType.GetElementType(); |
| | | 3933 | | if (elemType == null) |
| | | 3934 | | return false; |
| | | 3935 | | |
| | | 3936 | | #if LIGHT_EXPRESSION |
| | | 3937 | | var elems = (IArgumentProvider)expr; |
| | | 3938 | | var elemCount = elems.ArgumentCount; |
| | | 3939 | | #else |
| | | 3940 | | var elems = expr.Expressions; |
| | | 3941 | | var elemCount = elems.Count; |
| | | 3942 | | #endif |
| | | 3943 | | EmitLoadConstantInt(il, elemCount); // emit the length of the array calculated from the number of initia |
| | | 3944 | | il.Demit(OpCodes.Newarr, elemType); |
| | | 3945 | | |
| | | 3946 | | var isElemOfValueType = elemType.IsValueType; |
| | | 3947 | | for (var i = 0; i < elemCount; i++) |
| | | 3948 | | { |
| | | 3949 | | il.Demit(OpCodes.Dup); |
| | | 3950 | | EmitLoadConstantInt(il, i); |
| | | 3951 | | if (isElemOfValueType) // loading element address for later copying of value into it. |
| | | 3952 | | { |
| | | 3953 | | il.Demit(OpCodes.Ldelema, elemType); |
| | | 3954 | | if (!TryEmit(elems.GetArgument(i), paramExprs, il, ref closure, setup, parent)) |
| | | 3955 | | return false; |
| | | 3956 | | il.Demit(OpCodes.Stobj, elemType); // store element of value type by array element address |
| | | 3957 | | } |
| | | 3958 | | else |
| | | 3959 | | { |
| | | 3960 | | if (!TryEmit(elems.GetArgument(i), paramExprs, il, ref closure, setup, parent)) |
| | | 3961 | | return false; |
| | | 3962 | | il.Demit(OpCodes.Stelem_Ref); |
| | | 3963 | | } |
| | | 3964 | | } |
| | | 3965 | | return true; |
| | | 3966 | | } |
| | | 3967 | | |
| | | 3968 | | #if LIGHT_EXPRESSION |
| | | 3969 | | private static bool EmitMemberInit(MemberInitExpression expr, IParameterProvider paramExprs, ILGenerator il, |
| | | 3970 | | CompilerFlags setup, ParentFlags parent) |
| | | 3971 | | #else |
| | | 3972 | | private static bool EmitMemberInit(MemberInitExpression expr, IReadOnlyList<PE> paramExprs, ILGenerator il, |
| | | 3973 | | CompilerFlags setup, ParentFlags parent) |
| | | 3974 | | #endif |
| | | 3975 | | { |
| | | 3976 | | var valueVarIndex = -1; |
| | | 3977 | | var exprType = expr.Type; |
| | | 3978 | | if (exprType.IsValueType) |
| | | 3979 | | valueVarIndex = il.GetNextLocalVarIndex(exprType); |
| | | 3980 | | |
| | | 3981 | | var newExpr = expr.NewExpression; |
| | | 3982 | | #if LIGHT_EXPRESSION |
| | | 3983 | | if (newExpr == null) |
| | | 3984 | | { |
| | | 3985 | | if (!TryEmit(expr.Expression, paramExprs, il, ref closure, setup, parent)) |
| | | 3986 | | return false; |
| | | 3987 | | if (valueVarIndex != -1) |
| | | 3988 | | EmitStoreLocalVariable(il, valueVarIndex); |
| | | 3989 | | } |
| | | 3990 | | else |
| | | 3991 | | #endif |
| | | 3992 | | { |
| | | 3993 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 3994 | | var argExprs = (IArgumentProvider)newExpr; |
| | | 3995 | | #else |
| | | 3996 | | var argExprs = newExpr.Arguments; |
| | | 3997 | | #endif |
| | | 3998 | | var argCount = argExprs.GetCount(); |
| | | 3999 | | if (argCount > 0) |
| | | 4000 | | { |
| | | 4001 | | var args = newExpr.Constructor.GetParameters(); |
| | | 4002 | | for (var i = 0; i < argCount; i++) |
| | | 4003 | | if (!TryEmit(argExprs.GetArgument(i), paramExprs, il, ref closure, setup, parent, |
| | | 4004 | | args[i].ParameterType.IsByRef ? i : -1)) |
| | | 4005 | | return false; |
| | | 4006 | | } |
| | | 4007 | | |
| | | 4008 | | if (newExpr.Constructor != null) |
| | | 4009 | | { |
| | | 4010 | | il.Demit(OpCodes.Newobj, newExpr.Constructor); |
| | | 4011 | | if (valueVarIndex != -1) |
| | | 4012 | | EmitStoreLocalVariable(il, valueVarIndex); |
| | | 4013 | | } |
| | | 4014 | | else if (valueVarIndex != -1) |
| | | 4015 | | InitValueTypeVariable(il, exprType, valueVarIndex); |
| | | 4016 | | else |
| | | 4017 | | return false; // null constructor and not a value type, better to fallback |
| | | 4018 | | } |
| | | 4019 | | |
| | | 4020 | | #if LIGHT_EXPRESSION |
| | | 4021 | | var bindings = (IArgumentProvider<MemberBinding>)expr; |
| | | 4022 | | var bindCount = bindings.ArgumentCount; |
| | | 4023 | | #else |
| | | 4024 | | var bindings = expr.Bindings; |
| | | 4025 | | var bindCount = bindings.Count; |
| | | 4026 | | #endif |
| | | 4027 | | for (var i = 0; i < bindCount; i++) |
| | | 4028 | | { |
| | | 4029 | | var binding = bindings.GetArgument(i); |
| | | 4030 | | if (binding.BindingType != MemberBindingType.Assignment) // todo: @feature is not supported yet |
| | | 4031 | | return false; |
| | | 4032 | | |
| | | 4033 | | if (valueVarIndex != -1) // load local value address, to set its members |
| | | 4034 | | EmitLoadLocalVariableAddress(il, valueVarIndex); |
| | | 4035 | | else |
| | | 4036 | | il.Demit(OpCodes.Dup); // duplicate member owner on stack |
| | | 4037 | | |
| | | 4038 | | if (!TryEmit(((MemberAssignment)binding).Expression, paramExprs, il, ref closure, setup, parent) || |
| | | 4039 | | !EmitMemberSet(il, binding.Member)) |
| | | 4040 | | return false; |
| | | 4041 | | } |
| | | 4042 | | |
| | | 4043 | | if (valueVarIndex != -1) |
| | | 4044 | | EmitLoadLocalVariable(il, valueVarIndex); |
| | | 4045 | | return true; |
| | | 4046 | | } |
| | | 4047 | | |
| | | 4048 | | [MethodImpl((MethodImplOptions)256)] |
| | | 4049 | | private static bool TryEmitPropertySet(ILGenerator il, PropertyInfo prop) |
| | | 4050 | | { |
| | | 4051 | | var method = prop.SetMethod; |
| | | 4052 | | return method != null && EmitMethodCallOrVirtualCall(il, method); |
| | | 4053 | | } |
| | | 4054 | | |
| | | 4055 | | [MethodImpl((MethodImplOptions)256)] |
| | | 4056 | | private static bool EmitFieldSet(ILGenerator il, FieldInfo field) |
| | | 4057 | | { |
| | | 4058 | | il.Demit(field.IsStatic ? OpCodes.Stsfld : OpCodes.Stfld, field); |
| | | 4059 | | return true; |
| | | 4060 | | } |
| | | 4061 | | |
| | | 4062 | | [MethodImpl((MethodImplOptions)256)] |
| | | 4063 | | private static bool EmitMemberSet(ILGenerator il, MemberInfo member) => |
| | | 4064 | | member is PropertyInfo pr ? TryEmitPropertySet(il, pr) : |
| | | 4065 | | member is FieldInfo field ? EmitFieldSet(il, field) : |
| | | 4066 | | false; |
| | | 4067 | | |
| | | 4068 | | #if LIGHT_EXPRESSION |
| | | 4069 | | private static bool TryEmitListInit(ListInitExpression expr, IParameterProvider paramExprs, ILGenerator il, |
| | | 4070 | | CompilerFlags setup, ParentFlags parent) |
| | | 4071 | | #else |
| | | 4072 | | private static bool TryEmitListInit(ListInitExpression expr, IReadOnlyList<PE> paramExprs, ILGenerator il, r |
| | | 4073 | | CompilerFlags setup, ParentFlags parent) |
| | | 4074 | | #endif |
| | | 4075 | | { |
| | | 4076 | | var valueVarIndex = -1; |
| | | 4077 | | var exprType = expr.Type; |
| | | 4078 | | if (exprType.IsValueType) |
| | | 4079 | | valueVarIndex = il.GetNextLocalVarIndex(exprType); |
| | | 4080 | | |
| | | 4081 | | var newExpr = expr.NewExpression; |
| | | 4082 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 4083 | | var argExprs = (IArgumentProvider)newExpr; |
| | | 4084 | | #else |
| | | 4085 | | var argExprs = newExpr.Arguments; |
| | | 4086 | | #endif |
| | | 4087 | | var argCount = argExprs.GetCount(); |
| | | 4088 | | if (argCount > 0) |
| | | 4089 | | { |
| | | 4090 | | var args = newExpr.Constructor.GetParameters(); |
| | | 4091 | | for (var i = 0; i < argCount; i++) |
| | | 4092 | | if (!TryEmit(argExprs.GetArgument(i), paramExprs, il, ref closure, setup, parent, |
| | | 4093 | | args[i].ParameterType.IsByRef ? i : -1)) |
| | | 4094 | | return false; |
| | | 4095 | | } |
| | | 4096 | | |
| | | 4097 | | if (newExpr.Constructor != null) |
| | | 4098 | | { |
| | | 4099 | | il.Demit(OpCodes.Newobj, newExpr.Constructor); |
| | | 4100 | | if (valueVarIndex != -1) |
| | | 4101 | | EmitStoreLocalVariable(il, valueVarIndex); |
| | | 4102 | | } |
| | | 4103 | | else if (valueVarIndex != -1) |
| | | 4104 | | InitValueTypeVariable(il, exprType, valueVarIndex); |
| | | 4105 | | else |
| | | 4106 | | return false; // null constructor and not a value type, better to fallback |
| | | 4107 | | |
| | | 4108 | | var inits = expr.Initializers; |
| | | 4109 | | var initCount = inits.Count; |
| | | 4110 | | var ok = true; |
| | | 4111 | | |
| | | 4112 | | // see the TryEmitMethodCall for the reason of the callFlags |
| | | 4113 | | var callFlags = (parent |
| | | 4114 | | & ~(ParentFlags.IgnoreResult | ParentFlags.MemberAccess | ParentFlags.InstanceAccess | |
| | | 4115 | | ParentFlags.LambdaCall | ParentFlags.ReturnByRef)) |
| | | 4116 | | | ParentFlags.Call; |
| | | 4117 | | for (var i = 0; i < initCount; ++i) |
| | | 4118 | | { |
| | | 4119 | | if (valueVarIndex != -1) // load local value address, to set its members |
| | | 4120 | | EmitLoadLocalVariableAddress(il, valueVarIndex); |
| | | 4121 | | else |
| | | 4122 | | il.Demit(OpCodes.Dup); // duplicate member owner on stack |
| | | 4123 | | |
| | | 4124 | | var elemInit = inits.GetArgument(i); |
| | | 4125 | | var method = elemInit.AddMethod; |
| | | 4126 | | var methodParams = method.GetParameters(); |
| | | 4127 | | #if LIGHT_EXPRESSION |
| | | 4128 | | var addArgs = (IArgumentProvider)elemInit; |
| | | 4129 | | var addArgCount = elemInit.ArgumentCount; |
| | | 4130 | | #else |
| | | 4131 | | var addArgs = elemInit.Arguments; |
| | | 4132 | | var addArgCount = addArgs.Count; |
| | | 4133 | | #endif |
| | | 4134 | | for (var a = 0; ok && a < addArgCount; ++a) |
| | | 4135 | | ok = TryEmit(addArgs.GetArgument(a), paramExprs, il, ref closure, setup, callFlags, methodParams |
| | | 4136 | | |
| | | 4137 | | if (!exprType.IsValueType) |
| | | 4138 | | ok = EmitMethodCallOrVirtualCall(il, method); |
| | | 4139 | | else if (!method.IsVirtual // #251 - no need for constrained or virtual call because it is already b |
| | | 4140 | | || method.DeclaringType == exprType) |
| | | 4141 | | ok = EmitMethodCall(il, method); |
| | | 4142 | | else |
| | | 4143 | | { |
| | | 4144 | | il.Demit(OpCodes.Constrained, exprType); // todo: @clarify it is a value type so... can we de-vi |
| | | 4145 | | ok = EmitVirtualMethodCall(il, method); |
| | | 4146 | | } |
| | | 4147 | | } |
| | | 4148 | | |
| | | 4149 | | if (valueVarIndex != -1) |
| | | 4150 | | EmitLoadLocalVariable(il, valueVarIndex); |
| | | 4151 | | return ok; |
| | | 4152 | | } |
| | | 4153 | | |
| | | 4154 | | // the `right = null` argument indicates the increment/decrement operation |
| | | 4155 | | private static bool TryEmitArithmeticAndOrAssign( |
| | | 4156 | | Expression left, Expression right, Type exprType, ExpressionType nodeType, bool isPost, |
| | | 4157 | | #if LIGHT_EXPRESSION |
| | | 4158 | | IParameterProvider paramExprs, |
| | | 4159 | | #else |
| | | 4160 | | IReadOnlyList<PE> paramExprs, |
| | | 4161 | | #endif |
| | | 4162 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 4163 | | { |
| | | 4164 | | // we need the result variable and the time of Post/Pre when to store it only if the result is not ignor |
| | | 4165 | | var resultVar = -1; |
| | | 4166 | | if (!parent.IgnoresResult()) |
| | | 4167 | | resultVar = il.GetNextLocalVarIndex(exprType); |
| | | 4168 | | |
| | | 4169 | | switch (left.NodeType) |
| | | 4170 | | { |
| | | 4171 | | case ExpressionType.Parameter: |
| | | 4172 | | if (!isPost) |
| | | 4173 | | return TryEmitAssignToParameterOrVariable((ParameterExpression)left, right, |
| | | 4174 | | nodeType, isPost, exprType, paramExprs, il, ref closure, setup, parent, resultVar); |
| | | 4175 | | |
| | | 4176 | | // todo: @wip split for now between the Increment/Decrement and the rest |
| | | 4177 | | var p = (ParameterExpression)left; |
| | | 4178 | | #if LIGHT_EXPRESSION |
| | | 4179 | | var paramExprCount = paramExprs.ParameterCount; |
| | | 4180 | | #else |
| | | 4181 | | var paramExprCount = paramExprs.Count; |
| | | 4182 | | #endif |
| | | 4183 | | var paramIndex = -1; |
| | | 4184 | | var localVarIndex = closure.GetDefinedLocalVarOrDefault(p); |
| | | 4185 | | if (localVarIndex != -1) |
| | | 4186 | | EmitLoadLocalVariable(il, localVarIndex); |
| | | 4187 | | else |
| | | 4188 | | { |
| | | 4189 | | paramIndex = paramExprCount - 1; |
| | | 4190 | | while (paramIndex != -1 && !ReferenceEquals(paramExprs.GetParameter(paramIndex), p)) --param |
| | | 4191 | | if (paramIndex == -1) |
| | | 4192 | | return false; |
| | | 4193 | | if ((closure.Status & ClosureStatus.ShouldBeStaticMethod) == 0) |
| | | 4194 | | ++paramIndex; |
| | | 4195 | | EmitLoadArg(il, paramIndex); |
| | | 4196 | | if (p.IsByRef) |
| | | 4197 | | EmitLoadIndirectlyByRef(il, p.Type); |
| | | 4198 | | } |
| | | 4199 | | |
| | | 4200 | | if (resultVar != -1 & isPost) |
| | | 4201 | | EmitStoreAndLoadLocalVariable(il, resultVar); // for the post increment/decrement save the n |
| | | 4202 | | |
| | | 4203 | | EmitIncOrDec(il, nodeType == ExpressionType.Add); |
| | | 4204 | | |
| | | 4205 | | if (resultVar != -1 & !isPost) |
| | | 4206 | | EmitStoreAndLoadLocalVariable(il, resultVar); |
| | | 4207 | | |
| | | 4208 | | if (localVarIndex != -1) |
| | | 4209 | | EmitStoreLocalVariable(il, localVarIndex); // store incremented value into the local value; |
| | | 4210 | | else if (p.IsByRef) |
| | | 4211 | | { |
| | | 4212 | | var incrementedVar = il.GetNextLocalVarIndex(exprType); |
| | | 4213 | | EmitStoreLocalVariable(il, incrementedVar); |
| | | 4214 | | EmitLoadArg(il, paramIndex); |
| | | 4215 | | EmitLoadLocalVariable(il, incrementedVar); |
| | | 4216 | | EmitStoreIndirectlyByRef(il, exprType); |
| | | 4217 | | } |
| | | 4218 | | else |
| | | 4219 | | il.Demit(OpCodes.Starg_S, paramIndex); |
| | | 4220 | | break; |
| | | 4221 | | |
| | | 4222 | | case ExpressionType.ArrayIndex: |
| | | 4223 | | throw new InvalidOperationException("ArrayIndex is not supported for the left part of the assign |
| | | 4224 | | |
| | | 4225 | | case ExpressionType.MemberAccess: |
| | | 4226 | | case ExpressionType.Index: |
| | | 4227 | | var leftMemberExpr = left as MemberExpression; |
| | | 4228 | | var orLeftIndexExpr = left as IndexExpression; |
| | | 4229 | | |
| | | 4230 | | // return early for not supported types of left value to avoid multiple checks below |
| | | 4231 | | if (leftMemberExpr == null & orLeftIndexExpr == null) |
| | | 4232 | | return false; |
| | | 4233 | | |
| | | 4234 | | var indexArgCount = -1; |
| | | 4235 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 4236 | | IArgumentProvider indexArgs = null; |
| | | 4237 | | #else |
| | | 4238 | | IReadOnlyList<Expression> indexArgs = null; |
| | | 4239 | | #endif |
| | | 4240 | | if (orLeftIndexExpr != null) |
| | | 4241 | | { |
| | | 4242 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 4243 | | indexArgs = (IArgumentProvider)orLeftIndexExpr; |
| | | 4244 | | #else |
| | | 4245 | | indexArgs = orLeftIndexExpr.Arguments; |
| | | 4246 | | #endif |
| | | 4247 | | indexArgCount = indexArgs.GetCount(); |
| | | 4248 | | if (indexArgCount > 4) |
| | | 4249 | | return false; // todo: @feature more than 4 index arguments are not supported, and proba |
| | | 4250 | | } |
| | | 4251 | | |
| | | 4252 | | var objExpr = leftMemberExpr != null ? leftMemberExpr.Expression : orLeftIndexExpr.Object; |
| | | 4253 | | |
| | | 4254 | | // Remove the InstanceCall because we need to operate on the (nullable) field value and not on ` |
| | | 4255 | | // We may avoid it in case of not returning the value or PreIncrement/PreDecrement, but let's do |
| | | 4256 | | var baseFlags = parent & |
| | | 4257 | | ~(ParentFlags.IgnoreResult | ParentFlags.InstanceCall | |
| | | 4258 | | ParentFlags.LambdaCall | ParentFlags.ReturnByRef); |
| | | 4259 | | var rightOnlyFlags = baseFlags | ParentFlags.AssignmentRightValue; |
| | | 4260 | | |
| | | 4261 | | |
| | | 4262 | | var memberOrIndexFlags = leftMemberExpr != null ? ParentFlags.MemberAccess : ParentFlags.IndexAc |
| | | 4263 | | var leftArLeastFlags = baseFlags | ParentFlags.AssignmentLeftValue | memberOrIndexFlags; |
| | | 4264 | | |
| | | 4265 | | var leftIsByAddress = false; |
| | | 4266 | | if (nodeType == ExpressionType.Assign) |
| | | 4267 | | { |
| | | 4268 | | Debug.Assert(right != null); |
| | | 4269 | | var rightType = right.Type; |
| | | 4270 | | |
| | | 4271 | | // if the right part is the block or alike, it is better from the complexity perspective |
| | | 4272 | | // to emit it first and then restore the assignment target from var and assign the value |
| | | 4273 | | var rightVar = -1; |
| | | 4274 | | if (right.NodeType.IsBlockLikeOrConditional() || |
| | | 4275 | | right.NodeType == ExpressionType.Invoke) |
| | | 4276 | | { |
| | | 4277 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, rightOnlyFlags)) |
| | | 4278 | | return false; |
| | | 4279 | | if (closure.LastEmitIsAddress) |
| | | 4280 | | EmitLoadIndirectlyByRef(il, rightType); |
| | | 4281 | | rightVar = resultVar != -1 ? resultVar : il.GetNextLocalVarIndex(rightType); |
| | | 4282 | | EmitStoreLocalVariable(il, rightVar); |
| | | 4283 | | } |
| | | 4284 | | |
| | | 4285 | | // Emit the left-value instance and index(es) (for the index access) |
| | | 4286 | | if (leftMemberExpr != null) |
| | | 4287 | | { |
| | | 4288 | | if (objExpr != null && |
| | | 4289 | | !TryEmit(objExpr, paramExprs, il, ref closure, setup, leftArLeastFlags | ParentFlags |
| | | 4290 | | return false; |
| | | 4291 | | } |
| | | 4292 | | else |
| | | 4293 | | { |
| | | 4294 | | Debug.Assert(orLeftIndexExpr != null); |
| | | 4295 | | if (objExpr != null) |
| | | 4296 | | { |
| | | 4297 | | var isIndexerAMethodCall = indexArgCount > 1 | orLeftIndexExpr.Indexer != null; |
| | | 4298 | | var objFlags = isIndexerAMethodCall ? ParentFlags.InstanceCall : ParentFlags.Instanc |
| | | 4299 | | if (!TryEmit(objExpr, paramExprs, il, ref closure, setup, objFlags | ParentFlags.Ass |
| | | 4300 | | return false; |
| | | 4301 | | } |
| | | 4302 | | for (var i = 0; i < indexArgCount; i++) |
| | | 4303 | | if (!TryEmit(indexArgs.GetArgument(i), paramExprs, il, ref closure, setup, baseFlags |
| | | 4304 | | return false; |
| | | 4305 | | } |
| | | 4306 | | |
| | | 4307 | | // Load already emitted or emit the right-value normally after the left to be assigned |
| | | 4308 | | if (rightVar != -1) |
| | | 4309 | | { |
| | | 4310 | | EmitLoadLocalVariable(il, rightVar); |
| | | 4311 | | } |
| | | 4312 | | else |
| | | 4313 | | { |
| | | 4314 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, rightOnlyFlags)) |
| | | 4315 | | return false; |
| | | 4316 | | if (resultVar != -1) |
| | | 4317 | | EmitStoreAndLoadLocalVariable(il, resultVar); |
| | | 4318 | | } |
| | | 4319 | | |
| | | 4320 | | if (leftMemberExpr != null) |
| | | 4321 | | { |
| | | 4322 | | if (!EmitMemberSet(il, leftMemberExpr.Member)) |
| | | 4323 | | return false; |
| | | 4324 | | } |
| | | 4325 | | else // if (leftIndexExpr != null) |
| | | 4326 | | { |
| | | 4327 | | var ok = orLeftIndexExpr.Indexer != null |
| | | 4328 | | ? EmitMethodCallOrVirtualCallCheckForNull(il, orLeftIndexExpr.Indexer.SetMethod) |
| | | 4329 | | : indexArgCount == 1 |
| | | 4330 | | ? TryEmitArrayIndexSet(il, orLeftIndexExpr.Type) // one-dimensional array |
| | | 4331 | | : EmitMethodCallOrVirtualCallCheckForNull(il, objExpr?.Type.FindMethod("Set")); |
| | | 4332 | | if (!ok) |
| | | 4333 | | return false; |
| | | 4334 | | } |
| | | 4335 | | |
| | | 4336 | | if (resultVar != -1) |
| | | 4337 | | EmitLoadLocalVariable(il, resultVar); |
| | | 4338 | | return true; |
| | | 4339 | | } |
| | | 4340 | | |
| | | 4341 | | // Here we are at Arithmetic + Assign: |
| | | 4342 | | // 1. First loading the left part as a part of right assignment, |
| | | 4343 | | // 2. Loading the right value |
| | | 4344 | | // 3. Do arithmetic operation |
| | | 4345 | | // 4. Storing the result in the local variable |
| | | 4346 | | // 5. Loading the left value for assignment |
| | | 4347 | | // 6. Loading the stored arithmetic result |
| | | 4348 | | // 7. Assign the result |
| | | 4349 | | var leftOrRightNullableAreNullLabel = default(Label); |
| | | 4350 | | var leftType = left.Type; |
| | | 4351 | | if (leftMemberExpr != null) |
| | | 4352 | | { |
| | | 4353 | | if (!TryEmitMemberGet(leftMemberExpr, paramExprs, il, ref closure, setup, |
| | | 4354 | | leftArLeastFlags | ParentFlags.Arithmetic | ParentFlags.DupIt)) |
| | | 4355 | | return false; |
| | | 4356 | | } |
| | | 4357 | | else // if (leftIndexExpr != null) |
| | | 4358 | | { |
| | | 4359 | | // determine is the index essentially the method call to get/set value |
| | | 4360 | | var isIndexerAMethodCall = indexArgCount > 1 | orLeftIndexExpr.Indexer != null; |
| | | 4361 | | var objVar = -1; |
| | | 4362 | | var objVarByAddress = false; |
| | | 4363 | | if (objExpr != null) |
| | | 4364 | | { |
| | | 4365 | | var objFlags = isIndexerAMethodCall ? ParentFlags.InstanceCall : ParentFlags.InstanceAcc |
| | | 4366 | | if (!TryEmit(objExpr, paramExprs, il, ref closure, setup, objFlags | ParentFlags.Arithme |
| | | 4367 | | return false; |
| | | 4368 | | |
| | | 4369 | | // required for calling the method on the value type parameter |
| | | 4370 | | var objType = objExpr.Type; |
| | | 4371 | | objVarByAddress = !closure.LastEmitIsAddress && objType.IsValueType && // todo: @wip avo |
| | | 4372 | | (objExpr.NodeType != ExpressionType.Parameter || !((ParameterExpression)objExpr).IsB |
| | | 4373 | | if (objVarByAddress) |
| | | 4374 | | objVar = EmitStoreAndLoadLocalVariableAddress(il, objType); |
| | | 4375 | | else |
| | | 4376 | | { |
| | | 4377 | | if (objExpr is ParameterExpression pe && pe.IsByRef) |
| | | 4378 | | objType = objType.MakeByRefType(); |
| | | 4379 | | objVar = EmitStoreAndLoadLocalVariable(il, objType); |
| | | 4380 | | } |
| | | 4381 | | } |
| | | 4382 | | |
| | | 4383 | | int indexArgVar0 = -1, indexArgVar1 = -1, indexArgVar2 = -1, indexArgVar3 = -1; // using sta |
| | | 4384 | | for (var i = 0; i < indexArgCount; i++) |
| | | 4385 | | { |
| | | 4386 | | var indexArg = indexArgs.GetArgument(i); |
| | | 4387 | | if (!TryEmit(indexArg, paramExprs, il, ref closure, setup, baseFlags)) |
| | | 4388 | | return false; |
| | | 4389 | | var indexArgVar = EmitStoreAndLoadLocalVariable(il, indexArg.Type); |
| | | 4390 | | if (i == 0) indexArgVar0 = indexArgVar; |
| | | 4391 | | else if (i == 1) indexArgVar1 = indexArgVar; |
| | | 4392 | | else if (i == 2) indexArgVar2 = indexArgVar; |
| | | 4393 | | else if (i == 3) indexArgVar3 = indexArgVar; |
| | | 4394 | | } |
| | | 4395 | | |
| | | 4396 | | // repeat the load of the obj and index variables for the assignment here to avoid store and |
| | | 4397 | | if (objExpr != null) |
| | | 4398 | | { |
| | | 4399 | | if (!objVarByAddress) |
| | | 4400 | | EmitLoadLocalVariable(il, objVar); |
| | | 4401 | | else |
| | | 4402 | | EmitLoadLocalVariableAddress(il, objVar); |
| | | 4403 | | } |
| | | 4404 | | |
| | | 4405 | | EmitLoadLocalVariable(il, indexArgVar0); // there is always at least one index argument |
| | | 4406 | | if (indexArgVar1 != -1) |
| | | 4407 | | { |
| | | 4408 | | EmitLoadLocalVariable(il, indexArgVar1); |
| | | 4409 | | if (indexArgVar2 != -1) |
| | | 4410 | | EmitLoadLocalVariable(il, indexArgVar2); |
| | | 4411 | | if (indexArgVar3 != -1) |
| | | 4412 | | EmitLoadLocalVariable(il, indexArgVar3); |
| | | 4413 | | } |
| | | 4414 | | |
| | | 4415 | | var ok = !isIndexerAMethodCall |
| | | 4416 | | ? TryEmitArrayIndexGet(il, orLeftIndexExpr.Type, ref closure, baseFlags) // one-dimensio |
| | | 4417 | | : orLeftIndexExpr.Indexer != null |
| | | 4418 | | ? EmitMethodCallOrVirtualCallCheckForNull(il, orLeftIndexExpr.Indexer.GetMethod) |
| | | 4419 | | : EmitMethodCallOrVirtualCallCheckForNull(il, objExpr?.Type.FindMethod("Get")); // m |
| | | 4420 | | if (!ok) |
| | | 4421 | | return false; |
| | | 4422 | | } |
| | | 4423 | | |
| | | 4424 | | if (leftIsByAddress = closure.LastEmitIsAddress) |
| | | 4425 | | EmitLoadIndirectlyByRef(il, leftType); // if the field is loaded by ref, it need to be loade |
| | | 4426 | | |
| | | 4427 | | var leftIsNullable = leftType.IsNullable(); |
| | | 4428 | | if (!leftIsNullable) |
| | | 4429 | | { |
| | | 4430 | | if (right == null) // optimization for the common increment/decrement case, indicated by usi |
| | | 4431 | | { |
| | | 4432 | | if (resultVar != -1 & isPost) |
| | | 4433 | | EmitStoreAndLoadLocalVariable(il, resultVar); // for the post increment/decrement sa |
| | | 4434 | | EmitIncOrDec(il, nodeType == ExpressionType.Add); |
| | | 4435 | | if (resultVar != -1 & !isPost) |
| | | 4436 | | EmitStoreAndLoadLocalVariable(il, resultVar); |
| | | 4437 | | } |
| | | 4438 | | else |
| | | 4439 | | { |
| | | 4440 | | var rightType = right.Type; |
| | | 4441 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, rightOnlyFlags)) |
| | | 4442 | | return false; |
| | | 4443 | | |
| | | 4444 | | var rightIsNullable = rightType.IsNullable(); |
| | | 4445 | | if (rightIsNullable) // todo: @perf @clarify is it even possible to have left non-nullab |
| | | 4446 | | { |
| | | 4447 | | var rightVar = EmitStoreAndLoadLocalVariableAddress(il, rightType); |
| | | 4448 | | il.Demit(OpCodes.Call, leftType.GetNullableHasValueGetterMethod()); |
| | | 4449 | | |
| | | 4450 | | il.Demit(OpCodes.Brfalse, leftOrRightNullableAreNullLabel = il.DefineLabel()); |
| | | 4451 | | |
| | | 4452 | | EmitLoadLocalVariableAddress(il, rightVar); |
| | | 4453 | | il.Demit(OpCodes.Ldfld, rightType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod() |
| | | 4454 | | } |
| | | 4455 | | |
| | | 4456 | | if (!TryEmitArithmeticOperation(leftType, rightType, nodeType, exprType, il)) |
| | | 4457 | | return false; |
| | | 4458 | | if (resultVar != -1) |
| | | 4459 | | EmitStoreAndLoadLocalVariable(il, resultVar); |
| | | 4460 | | } |
| | | 4461 | | } |
| | | 4462 | | else // if `leftIsNullable == true` |
| | | 4463 | | { |
| | | 4464 | | // Reuse the result variable for the field, |
| | | 4465 | | // so it may be returned as the original value of field if nullable is `null` and we jump to |
| | | 4466 | | var leftNullableVar = resultVar != -1 ? resultVar : il.GetNextLocalVarIndex(leftType); |
| | | 4467 | | EmitStoreLocalVariable(il, leftNullableVar); |
| | | 4468 | | |
| | | 4469 | | if (right == null) |
| | | 4470 | | { |
| | | 4471 | | EmitLoadLocalVariableAddress(il, leftNullableVar); |
| | | 4472 | | il.Demit(OpCodes.Call, leftType.GetNullableHasValueGetterMethod()); |
| | | 4473 | | |
| | | 4474 | | il.Demit(OpCodes.Brfalse, leftOrRightNullableAreNullLabel = il.DefineLabel()); |
| | | 4475 | | |
| | | 4476 | | EmitLoadLocalVariableAddress(il, leftNullableVar); |
| | | 4477 | | il.Demit(OpCodes.Ldfld, leftType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 4478 | | |
| | | 4479 | | EmitIncOrDec(il, nodeType == ExpressionType.Add); |
| | | 4480 | | } |
| | | 4481 | | else |
| | | 4482 | | { |
| | | 4483 | | // emit the right expression immediately after the left and then just process their resu |
| | | 4484 | | var rightType = right.Type; |
| | | 4485 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, rightOnlyFlags)) |
| | | 4486 | | return false; |
| | | 4487 | | if (closure.LastEmitIsAddress) |
| | | 4488 | | EmitLoadIndirectlyByRef(il, rightType); |
| | | 4489 | | |
| | | 4490 | | var rightVar = EmitStoreLocalVariable(il, rightType); |
| | | 4491 | | |
| | | 4492 | | var rightIsNullable = rightType.IsNullable(); |
| | | 4493 | | if (!rightIsNullable) // todo: @perf @clarify if it is possible to have left nullable an |
| | | 4494 | | { |
| | | 4495 | | EmitLoadLocalVariableAddress(il, leftNullableVar); |
| | | 4496 | | il.Demit(OpCodes.Call, leftType.GetNullableHasValueGetterMethod()); |
| | | 4497 | | |
| | | 4498 | | il.Demit(OpCodes.Brfalse, leftOrRightNullableAreNullLabel = il.DefineLabel()); |
| | | 4499 | | |
| | | 4500 | | EmitLoadLocalVariableAddress(il, leftNullableVar); |
| | | 4501 | | il.Demit(OpCodes.Ldfld, leftType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()) |
| | | 4502 | | |
| | | 4503 | | EmitLoadLocalVariable(il, rightVar); |
| | | 4504 | | } |
| | | 4505 | | else |
| | | 4506 | | { |
| | | 4507 | | EmitLoadLocalVariableAddress(il, leftNullableVar); |
| | | 4508 | | il.Demit(OpCodes.Call, leftType.GetNullableHasValueGetterMethod()); |
| | | 4509 | | |
| | | 4510 | | EmitLoadLocalVariableAddress(il, rightVar); |
| | | 4511 | | il.Demit(OpCodes.Call, rightType.GetNullableHasValueGetterMethod()); |
| | | 4512 | | il.Demit(OpCodes.And); |
| | | 4513 | | il.Demit(OpCodes.Brfalse, leftOrRightNullableAreNullLabel = il.DefineLabel()); |
| | | 4514 | | |
| | | 4515 | | EmitLoadLocalVariableAddress(il, leftNullableVar); |
| | | 4516 | | il.Demit(OpCodes.Ldfld, leftType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()) |
| | | 4517 | | |
| | | 4518 | | EmitLoadLocalVariableAddress(il, rightVar); |
| | | 4519 | | il.Demit(OpCodes.Ldfld, rightType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod() |
| | | 4520 | | } |
| | | 4521 | | |
| | | 4522 | | if (!TryEmitArithmeticOperation(leftType, rightType, nodeType, exprType, il)) |
| | | 4523 | | return false; |
| | | 4524 | | } |
| | | 4525 | | |
| | | 4526 | | il.Demit(OpCodes.Newobj, leftType.GetNullableConstructor()); // wrap the result back into th |
| | | 4527 | | if (resultVar != -1 & !isPost) |
| | | 4528 | | EmitStoreAndLoadLocalVariable(il, resultVar); |
| | | 4529 | | } |
| | | 4530 | | |
| | | 4531 | | if (leftIsByAddress) |
| | | 4532 | | EmitStoreIndirectlyByRef(il, leftType); |
| | | 4533 | | else if (leftMemberExpr != null) |
| | | 4534 | | { |
| | | 4535 | | if (!EmitMemberSet(il, leftMemberExpr.Member)) |
| | | 4536 | | return false; |
| | | 4537 | | } |
| | | 4538 | | else // if (leftIndexExpr != null) |
| | | 4539 | | { |
| | | 4540 | | var ok = orLeftIndexExpr.Indexer != null |
| | | 4541 | | ? EmitMethodCallOrVirtualCallCheckForNull(il, orLeftIndexExpr.Indexer.SetMethod) |
| | | 4542 | | : indexArgCount == 1 |
| | | 4543 | | ? TryEmitArrayIndexSet(il, orLeftIndexExpr.Type) // one-dimensional array |
| | | 4544 | | : EmitMethodCallOrVirtualCallCheckForNull(il, objExpr?.Type.FindMethod("Set")); // m |
| | | 4545 | | if (!ok) |
| | | 4546 | | return false; |
| | | 4547 | | } |
| | | 4548 | | |
| | | 4549 | | if (leftIsNullable) |
| | | 4550 | | { |
| | | 4551 | | // todo: @perf @simplify avoid the Dup and the Pop for this case via storing and loading loc |
| | | 4552 | | if (leftIsByAddress | objExpr != null) |
| | | 4553 | | { |
| | | 4554 | | var skipPopLeftDuppedInstance = il.DefineLabel(); |
| | | 4555 | | il.Demit(OpCodes.Br_S, skipPopLeftDuppedInstance); |
| | | 4556 | | il.DmarkLabel(leftOrRightNullableAreNullLabel); // jump here if nullables are null after |
| | | 4557 | | |
| | | 4558 | | il.Demit(OpCodes.Pop); // pop the dupped instance address or the field address, or the a |
| | | 4559 | | |
| | | 4560 | | if (orLeftIndexExpr != null) |
| | | 4561 | | { |
| | | 4562 | | il.Demit(OpCodes.Pop); // pop the first index argument which is always present |
| | | 4563 | | if (indexArgCount > 1) |
| | | 4564 | | { |
| | | 4565 | | il.Demit(OpCodes.Pop); |
| | | 4566 | | if (indexArgCount > 2) |
| | | 4567 | | { |
| | | 4568 | | il.Demit(OpCodes.Pop); |
| | | 4569 | | if (indexArgCount > 3) |
| | | 4570 | | il.Demit(OpCodes.Pop); // pop the 4th last supported index argument |
| | | 4571 | | } |
| | | 4572 | | } |
| | | 4573 | | } |
| | | 4574 | | |
| | | 4575 | | il.DmarkLabel(skipPopLeftDuppedInstance); |
| | | 4576 | | } |
| | | 4577 | | else |
| | | 4578 | | { |
| | | 4579 | | il.DmarkLabel(leftOrRightNullableAreNullLabel); // jump here if nullables are null after |
| | | 4580 | | } |
| | | 4581 | | } |
| | | 4582 | | break; |
| | | 4583 | | default: |
| | | 4584 | | return false; |
| | | 4585 | | } |
| | | 4586 | | |
| | | 4587 | | if (resultVar != -1) |
| | | 4588 | | EmitLoadLocalVariable(il, resultVar); |
| | | 4589 | | return true; |
| | | 4590 | | } |
| | | 4591 | | |
| | | 4592 | | private static ExpressionType AssignToArithmeticOrSelf(ExpressionType nodeType) => nodeType switch |
| | | 4593 | | { |
| | | 4594 | | ExpressionType.AddAssign => ExpressionType.Add, |
| | | 4595 | | ExpressionType.AddAssignChecked => ExpressionType.AddChecked, |
| | | 4596 | | ExpressionType.SubtractAssign => ExpressionType.Subtract, |
| | | 4597 | | ExpressionType.SubtractAssignChecked => ExpressionType.SubtractChecked, |
| | | 4598 | | ExpressionType.MultiplyAssign => ExpressionType.Multiply, |
| | | 4599 | | ExpressionType.MultiplyAssignChecked => ExpressionType.MultiplyChecked, |
| | | 4600 | | ExpressionType.DivideAssign => ExpressionType.Divide, |
| | | 4601 | | ExpressionType.ModuloAssign => ExpressionType.Modulo, |
| | | 4602 | | ExpressionType.PowerAssign => ExpressionType.Power, |
| | | 4603 | | ExpressionType.AndAssign => ExpressionType.And, |
| | | 4604 | | ExpressionType.OrAssign => ExpressionType.Or, |
| | | 4605 | | ExpressionType.ExclusiveOrAssign => ExpressionType.ExclusiveOr, |
| | | 4606 | | ExpressionType.LeftShiftAssign => ExpressionType.LeftShift, |
| | | 4607 | | ExpressionType.RightShiftAssign => ExpressionType.RightShift, |
| | | 4608 | | _ => nodeType |
| | | 4609 | | }; |
| | | 4610 | | |
| | | 4611 | | // the null `right` means the increment/decrement operation |
| | | 4612 | | private static bool TryEmitAssignToParameterOrVariable( |
| | | 4613 | | ParameterExpression left, Expression right, ExpressionType nodeType, bool isPost, Type exprType, |
| | | 4614 | | #if LIGHT_EXPRESSION |
| | | 4615 | | IParameterProvider paramExprs, |
| | | 4616 | | #else |
| | | 4617 | | IReadOnlyList<PE> paramExprs, |
| | | 4618 | | #endif |
| | | 4619 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent, int resultVar = -1) |
| | | 4620 | | { |
| | | 4621 | | #if LIGHT_EXPRESSION |
| | | 4622 | | var paramExprCount = paramExprs.ParameterCount; |
| | | 4623 | | #else |
| | | 4624 | | var paramExprCount = paramExprs.Count; |
| | | 4625 | | #endif |
| | | 4626 | | var ok = false; |
| | | 4627 | | var flags = parent & ~ParentFlags.IgnoreResult; |
| | | 4628 | | |
| | | 4629 | | // First look if the left value is the local variable (in the current block) then store the right value |
| | | 4630 | | var leftLocalVar = closure.GetDefinedLocalVarOrDefault(left); |
| | | 4631 | | if (leftLocalVar != -1) |
| | | 4632 | | { |
| | | 4633 | | if (resultVar != -1 & isPost) |
| | | 4634 | | { |
| | | 4635 | | EmitLoadLocalVariable(il, leftLocalVar); |
| | | 4636 | | EmitStoreLocalVariable(il, resultVar); // for the post increment/decrement save the non-incremen |
| | | 4637 | | } |
| | | 4638 | | |
| | | 4639 | | var isLeftByRef = left.IsByRef; |
| | | 4640 | | if (nodeType == ExpressionType.Assign) |
| | | 4641 | | { |
| | | 4642 | | var varFlags = flags | ParentFlags.AssignmentRightValue; |
| | | 4643 | | if (isLeftByRef) |
| | | 4644 | | varFlags |= ParentFlags.AssignmentByRef; |
| | | 4645 | | ok = TryEmit(right, paramExprs, il, ref closure, setup, varFlags); |
| | | 4646 | | if (resultVar != -1 & !isPost) |
| | | 4647 | | EmitStoreAndLoadLocalVariable(il, resultVar); |
| | | 4648 | | if (!isLeftByRef) |
| | | 4649 | | EmitStoreLocalVariable(il, leftLocalVar); |
| | | 4650 | | } |
| | | 4651 | | else |
| | | 4652 | | { |
| | | 4653 | | ok = TryEmitArithmetic(left, right, nodeType, exprType, paramExprs, il, ref closure, setup, flag |
| | | 4654 | | if (resultVar != -1 & !isPost) |
| | | 4655 | | EmitStoreAndLoadLocalVariable(il, resultVar); |
| | | 4656 | | if (isLeftByRef) |
| | | 4657 | | EmitStoreIndirectlyByRef(il, exprType); |
| | | 4658 | | else |
| | | 4659 | | EmitStoreLocalVariable(il, leftLocalVar); |
| | | 4660 | | } |
| | | 4661 | | |
| | | 4662 | | // assigning the new value into the already closed variable - it enables the recursive nested lambda |
| | | 4663 | | var nestedLambdasCount = closure.NestedLambdas.Count; |
| | | 4664 | | for (var i = 0; i < nestedLambdasCount; ++i) |
| | | 4665 | | EmitStoreAssignedLeftVarIntoClosureArray(il, closure.NestedLambdas.Items[i], left, leftLocalVar) |
| | | 4666 | | |
| | | 4667 | | if (resultVar != -1) |
| | | 4668 | | EmitLoadLocalVariable(il, resultVar); |
| | | 4669 | | return ok; |
| | | 4670 | | } |
| | | 4671 | | |
| | | 4672 | | // If not the variable, then look if it is the passed parameter - yes it is bad but you can assign to th |
| | | 4673 | | var paramIndex = paramExprCount - 1; |
| | | 4674 | | while (paramIndex != -1 && !ReferenceEquals(paramExprs.GetParameter(paramIndex), left)) --paramIndex; |
| | | 4675 | | if (paramIndex != -1) |
| | | 4676 | | { |
| | | 4677 | | if ((closure.Status & ClosureStatus.ShouldBeStaticMethod) == 0) |
| | | 4678 | | ++paramIndex; // shift parameter index by one, because the first one will be closure |
| | | 4679 | | |
| | | 4680 | | var isLeftByRef = left.IsByRef; |
| | | 4681 | | if (isLeftByRef) |
| | | 4682 | | EmitLoadArg(il, paramIndex); |
| | | 4683 | | |
| | | 4684 | | if (resultVar != -1 & isPost) |
| | | 4685 | | EmitStoreAndLoadLocalVariable(il, resultVar); // for the post increment/decrement save the non-i |
| | | 4686 | | |
| | | 4687 | | ok = nodeType == ExpressionType.Assign |
| | | 4688 | | ? TryEmit(right, paramExprs, il, ref closure, setup, flags) |
| | | 4689 | | : TryEmitArithmetic(left, right, nodeType, exprType, paramExprs, il, ref closure, setup, flags); |
| | | 4690 | | |
| | | 4691 | | if (resultVar != -1 & !isPost) |
| | | 4692 | | EmitStoreAndLoadLocalVariable(il, resultVar); |
| | | 4693 | | |
| | | 4694 | | if (isLeftByRef) |
| | | 4695 | | EmitStoreIndirectlyByRef(il, left.Type); |
| | | 4696 | | else |
| | | 4697 | | il.Demit(OpCodes.Starg_S, paramIndex); |
| | | 4698 | | |
| | | 4699 | | if (resultVar != -1) |
| | | 4700 | | EmitLoadLocalVariable(il, resultVar); |
| | | 4701 | | return ok; |
| | | 4702 | | } |
| | | 4703 | | |
| | | 4704 | | // check that it is a captured parameter by closure |
| | | 4705 | | var nonPassedParamIndex = closure.NonPassedParameters.TryGetIndex(left, default(RefEq<ParameterExpressio |
| | | 4706 | | if (nonPassedParamIndex == -1) |
| | | 4707 | | return false; |
| | | 4708 | | |
| | | 4709 | | if (nodeType == ExpressionType.Assign) |
| | | 4710 | | { |
| | | 4711 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, flags)) |
| | | 4712 | | return false; |
| | | 4713 | | if (right is ParameterExpression rp && rp.IsByRef) |
| | | 4714 | | EmitLoadIndirectlyByRef(il, rp.Type); |
| | | 4715 | | |
| | | 4716 | | var rightVar = resultVar != -1 ? resultVar : il.GetNextLocalVarIndex(exprType); |
| | | 4717 | | EmitStoreLocalVariable(il, rightVar); |
| | | 4718 | | |
| | | 4719 | | // load array field and param item index |
| | | 4720 | | il.Demit(OpCodes.Ldarg_0); // load closure as it is always an argument zero |
| | | 4721 | | il.Demit(OpCodes.Ldfld, ArrayClosureWithNonPassedParamsField); |
| | | 4722 | | EmitLoadConstantInt(il, nonPassedParamIndex); |
| | | 4723 | | |
| | | 4724 | | EmitLoadLocalVariable(il, rightVar); |
| | | 4725 | | |
| | | 4726 | | il.TryEmitBoxOf(exprType); |
| | | 4727 | | il.Demit(OpCodes.Stelem_Ref); // put the variable into array |
| | | 4728 | | |
| | | 4729 | | // assigning the new value into the already closed variable - it enables the recursive nested lambda |
| | | 4730 | | var nestedLambdasCount = closure.NestedLambdas.Count; |
| | | 4731 | | for (var i = 0; i < nestedLambdasCount; ++i) |
| | | 4732 | | EmitStoreAssignedLeftVarIntoClosureArray(il, closure.NestedLambdas.Items[i], left, rightVar); |
| | | 4733 | | |
| | | 4734 | | if (resultVar != -1) |
| | | 4735 | | EmitLoadLocalVariable(il, rightVar); |
| | | 4736 | | return true; |
| | | 4737 | | } |
| | | 4738 | | |
| | | 4739 | | if (resultVar != -1 & isPost) |
| | | 4740 | | { |
| | | 4741 | | il.Demit(OpCodes.Ldarg_0); // load closure as it is always an argument zero |
| | | 4742 | | il.Demit(OpCodes.Ldfld, ArrayClosureWithNonPassedParamsField); |
| | | 4743 | | EmitLoadConstantInt(il, nonPassedParamIndex); |
| | | 4744 | | il.Demit(OpCodes.Ldelem_Ref); // load the variable from array |
| | | 4745 | | if (exprType.IsValueType) |
| | | 4746 | | il.Demit(OpCodes.Unbox_Any, exprType); |
| | | 4747 | | #if NETFRAMEWORK |
| | | 4748 | | else |
| | | 4749 | | il.Demit(OpCodes.Castclass, exprType); |
| | | 4750 | | #endif |
| | | 4751 | | EmitStoreLocalVariable(il, resultVar); |
| | | 4752 | | } |
| | | 4753 | | |
| | | 4754 | | // todo: @perf optimize for the increment/decrement case |
| | | 4755 | | if (!TryEmitArithmetic(left, right, nodeType, exprType, paramExprs, il, ref closure, setup, flags)) |
| | | 4756 | | return false; |
| | | 4757 | | |
| | | 4758 | | var arithmeticResultVar = resultVar != -1 ? resultVar : il.GetNextLocalVarIndex(exprType); |
| | | 4759 | | EmitStoreLocalVariable(il, arithmeticResultVar); |
| | | 4760 | | |
| | | 4761 | | il.Demit(OpCodes.Ldarg_0); // load closure as it is always an argument zero |
| | | 4762 | | il.Demit(OpCodes.Ldfld, ArrayClosureWithNonPassedParamsField); |
| | | 4763 | | EmitLoadConstantInt(il, nonPassedParamIndex); |
| | | 4764 | | |
| | | 4765 | | EmitLoadLocalVariable(il, arithmeticResultVar); |
| | | 4766 | | |
| | | 4767 | | il.TryEmitBoxOf(exprType); |
| | | 4768 | | il.Demit(OpCodes.Stelem_Ref); // put the variable into array |
| | | 4769 | | |
| | | 4770 | | if (resultVar != -1 & !isPost) |
| | | 4771 | | EmitLoadLocalVariable(il, arithmeticResultVar); |
| | | 4772 | | return true; |
| | | 4773 | | } |
| | | 4774 | | |
| | | 4775 | | private static void EmitStoreAssignedLeftVarIntoClosureArray(ILGenerator il, NestedLambdaInfo nestedLambdaIn |
| | | 4776 | | { |
| | | 4777 | | if (nestedLambdaInfo.NonPassedParamsVarIndex == 0) |
| | | 4778 | | return; |
| | | 4779 | | var nonPassedParIndex = nestedLambdaInfo.NonPassedParameters.TryGetIndex(assignedLeftVar, default(RefEq< |
| | | 4780 | | if (nonPassedParIndex == -1) |
| | | 4781 | | return; |
| | | 4782 | | EmitLoadLocalVariable(il, nestedLambdaInfo.NonPassedParamsVarIndex); |
| | | 4783 | | EmitLoadConstantInt(il, nonPassedParIndex); |
| | | 4784 | | EmitLoadLocalVariable(il, assignedLeftVarIndex); |
| | | 4785 | | il.TryEmitBoxOf(assignedLeftVar.Type); |
| | | 4786 | | il.Demit(OpCodes.Stelem_Ref); // put the variable into non-passed parameters (variables) array |
| | | 4787 | | } |
| | | 4788 | | |
| | | 4789 | | private static void EmitLoadIndirectlyByRef(ILGenerator il, Type type) |
| | | 4790 | | { |
| | | 4791 | | if (type.IsEnum) |
| | | 4792 | | type = Enum.GetUnderlyingType(type); |
| | | 4793 | | switch (Type.GetTypeCode(type)) |
| | | 4794 | | { |
| | | 4795 | | case TypeCode.Boolean: il.Demit(OpCodes.Ldind_U1); break; |
| | | 4796 | | case TypeCode.Char: il.Demit(OpCodes.Ldind_U1); break; |
| | | 4797 | | case TypeCode.Byte: il.Demit(OpCodes.Ldind_U1); break; |
| | | 4798 | | case TypeCode.SByte: il.Demit(OpCodes.Ldind_I1); break; |
| | | 4799 | | case TypeCode.Int16: il.Demit(OpCodes.Ldind_I2); break; |
| | | 4800 | | case TypeCode.Int32: il.Demit(OpCodes.Ldind_I4); break; |
| | | 4801 | | case TypeCode.Int64: il.Demit(OpCodes.Ldind_I8); break; |
| | | 4802 | | case TypeCode.Double: il.Demit(OpCodes.Ldind_R8); break; |
| | | 4803 | | case TypeCode.Single: il.Demit(OpCodes.Ldind_R4); break; |
| | | 4804 | | case TypeCode.UInt16: il.Demit(OpCodes.Ldind_U2); break; |
| | | 4805 | | case TypeCode.UInt32: il.Demit(OpCodes.Ldind_U4); break; |
| | | 4806 | | case TypeCode.UInt64: il.Demit(OpCodes.Ldobj, type); break; |
| | | 4807 | | case TypeCode.String: il.Demit(OpCodes.Ldind_Ref); break; |
| | | 4808 | | default: |
| | | 4809 | | if (type == typeof(IntPtr) | type == typeof(UIntPtr)) |
| | | 4810 | | il.Demit(OpCodes.Ldind_I); |
| | | 4811 | | else if (type.IsValueType) |
| | | 4812 | | il.Demit(OpCodes.Ldobj, type); |
| | | 4813 | | else |
| | | 4814 | | il.Demit(OpCodes.Ldind_Ref); |
| | | 4815 | | break; |
| | | 4816 | | } |
| | | 4817 | | } |
| | | 4818 | | |
| | | 4819 | | private static void EmitStoreIndirectlyByRef(ILGenerator il, Type type) |
| | | 4820 | | { |
| | | 4821 | | if (type.IsEnum) |
| | | 4822 | | type = Enum.GetUnderlyingType(type); |
| | | 4823 | | switch (Type.GetTypeCode(type)) |
| | | 4824 | | { |
| | | 4825 | | case TypeCode.Boolean: il.Demit(OpCodes.Stind_I1); break; |
| | | 4826 | | case TypeCode.Char: il.Demit(OpCodes.Stind_I1); break; |
| | | 4827 | | case TypeCode.Byte: il.Demit(OpCodes.Stind_I1); break; |
| | | 4828 | | case TypeCode.SByte: il.Demit(OpCodes.Stind_I1); break; |
| | | 4829 | | case TypeCode.Int16: il.Demit(OpCodes.Stind_I2); break; |
| | | 4830 | | case TypeCode.Int32: il.Demit(OpCodes.Stind_I4); break; |
| | | 4831 | | case TypeCode.Int64: il.Demit(OpCodes.Stind_I8); break; |
| | | 4832 | | case TypeCode.Double: il.Demit(OpCodes.Stind_R8); break; |
| | | 4833 | | case TypeCode.Single: il.Demit(OpCodes.Stind_R4); break; |
| | | 4834 | | case TypeCode.String: il.Demit(OpCodes.Stind_Ref); break; |
| | | 4835 | | case TypeCode.UInt16: il.Demit(OpCodes.Stind_I2); break; |
| | | 4836 | | case TypeCode.UInt32: il.Demit(OpCodes.Stind_I4); break; |
| | | 4837 | | case TypeCode.UInt64: il.Demit(OpCodes.Stind_I8); break; |
| | | 4838 | | default: |
| | | 4839 | | if (type == typeof(IntPtr) || type == typeof(UIntPtr)) |
| | | 4840 | | il.Demit(OpCodes.Stind_I); |
| | | 4841 | | else if (type.IsValueType) |
| | | 4842 | | il.Demit(OpCodes.Stobj, type); |
| | | 4843 | | else |
| | | 4844 | | il.Demit(OpCodes.Stind_Ref); |
| | | 4845 | | break; |
| | | 4846 | | } |
| | | 4847 | | } |
| | | 4848 | | |
| | | 4849 | | private static bool TryEmitArrayIndexGet(ILGenerator il, Type type, ref ClosureInfo closure, ParentFlags par |
| | | 4850 | | { |
| | | 4851 | | if (!type.IsValueType) |
| | | 4852 | | { |
| | | 4853 | | il.Demit(OpCodes.Ldelem_Ref); |
| | | 4854 | | return true; |
| | | 4855 | | } |
| | | 4856 | | |
| | | 4857 | | // access the value type by address when it is used later for the member access, as instance in the meth |
| | | 4858 | | if ((parent & (ParentFlags.MemberAccess | ParentFlags.InstanceAccess | ParentFlags.AssignmentByRef)) != |
| | | 4859 | | { |
| | | 4860 | | il.Demit(OpCodes.Ldelema, type); |
| | | 4861 | | closure.LastEmitIsAddress = true; |
| | | 4862 | | return true; |
| | | 4863 | | } |
| | | 4864 | | // todo: @perf @simplify convert to switch on TypeCode |
| | | 4865 | | if (type == typeof(Int32)) |
| | | 4866 | | il.Demit(OpCodes.Ldelem_I4); |
| | | 4867 | | else if (type == typeof(Int64)) |
| | | 4868 | | il.Demit(OpCodes.Ldelem_I8); |
| | | 4869 | | else if (type == typeof(Int16)) |
| | | 4870 | | il.Demit(OpCodes.Ldelem_I2); |
| | | 4871 | | else if (type == typeof(SByte)) |
| | | 4872 | | il.Demit(OpCodes.Ldelem_I1); |
| | | 4873 | | else if (type == typeof(Single)) |
| | | 4874 | | il.Demit(OpCodes.Ldelem_R4); |
| | | 4875 | | else if (type == typeof(Double)) |
| | | 4876 | | il.Demit(OpCodes.Ldelem_R8); |
| | | 4877 | | else if (type == typeof(IntPtr)) |
| | | 4878 | | il.Demit(OpCodes.Ldelem_I); |
| | | 4879 | | else if (type == typeof(UIntPtr)) |
| | | 4880 | | il.Demit(OpCodes.Ldelem_I); |
| | | 4881 | | else if (type == typeof(Byte)) |
| | | 4882 | | il.Demit(OpCodes.Ldelem_U1); |
| | | 4883 | | else if (type == typeof(UInt16)) |
| | | 4884 | | il.Demit(OpCodes.Ldelem_U2); |
| | | 4885 | | else if (type == typeof(UInt32)) |
| | | 4886 | | il.Demit(OpCodes.Ldelem_U4); |
| | | 4887 | | else |
| | | 4888 | | il.Demit(OpCodes.Ldelem, type); |
| | | 4889 | | return true; |
| | | 4890 | | } |
| | | 4891 | | |
| | | 4892 | | private static bool TryEmitArrayIndexSet(ILGenerator il, Type elementType) |
| | | 4893 | | { |
| | | 4894 | | if (!elementType.IsValueType) |
| | | 4895 | | { |
| | | 4896 | | il.Demit(OpCodes.Stelem_Ref); |
| | | 4897 | | return true; |
| | | 4898 | | } |
| | | 4899 | | |
| | | 4900 | | if (elementType == typeof(Int32)) |
| | | 4901 | | il.Demit(OpCodes.Stelem_I4); |
| | | 4902 | | else if (elementType == typeof(Int64)) |
| | | 4903 | | il.Demit(OpCodes.Stelem_I8); |
| | | 4904 | | else if (elementType == typeof(Int16)) |
| | | 4905 | | il.Demit(OpCodes.Stelem_I2); |
| | | 4906 | | else if (elementType == typeof(SByte)) |
| | | 4907 | | il.Demit(OpCodes.Stelem_I1); |
| | | 4908 | | else if (elementType == typeof(Single)) |
| | | 4909 | | il.Demit(OpCodes.Stelem_R4); |
| | | 4910 | | else if (elementType == typeof(Double)) |
| | | 4911 | | il.Demit(OpCodes.Stelem_R8); |
| | | 4912 | | else if (elementType == typeof(IntPtr)) |
| | | 4913 | | il.Demit(OpCodes.Stelem_I); |
| | | 4914 | | else if (elementType == typeof(UIntPtr)) |
| | | 4915 | | il.Demit(OpCodes.Stelem_I); |
| | | 4916 | | else |
| | | 4917 | | il.Demit(OpCodes.Stelem, elementType); |
| | | 4918 | | return true; |
| | | 4919 | | } |
| | | 4920 | | |
| | | 4921 | | private static bool TryEmitMethodCall(Expression expr, |
| | | 4922 | | #if LIGHT_EXPRESSION |
| | | 4923 | | IParameterProvider paramExprs, |
| | | 4924 | | #else |
| | | 4925 | | IReadOnlyList<PE> paramExprs, |
| | | 4926 | | #endif |
| | | 4927 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent, int byRefIndex = -1) |
| | | 4928 | | { |
| | | 4929 | | var flags = ParentFlags.Call; |
| | | 4930 | | var callExpr = (MethodCallExpression)expr; |
| | | 4931 | | var objExpr = callExpr.Object; |
| | | 4932 | | var method = callExpr.Method; |
| | | 4933 | | var methodParams = method.GetParameters(); // todo: @perf @mem find how to avoid the call, look at `NewN |
| | | 4934 | | |
| | | 4935 | | var objIsValueType = false; |
| | | 4936 | | var loadObjByAddress = false; |
| | | 4937 | | if (objExpr != null) |
| | | 4938 | | { |
| | | 4939 | | if (!TryEmit(objExpr, paramExprs, il, ref closure, setup, flags | ParentFlags.InstanceAccess)) |
| | | 4940 | | return false; |
| | | 4941 | | objIsValueType = objExpr.Type.IsValueType; |
| | | 4942 | | loadObjByAddress = objIsValueType && objExpr.NodeType != ExpressionType.Parameter && !closure.LastEm |
| | | 4943 | | } |
| | | 4944 | | |
| | | 4945 | | var parCount = methodParams.Length; |
| | | 4946 | | if (parCount == 0) |
| | | 4947 | | { |
| | | 4948 | | if (loadObjByAddress) |
| | | 4949 | | EmitStoreAndLoadLocalVariableAddress(il, objExpr.Type); |
| | | 4950 | | } |
| | | 4951 | | else |
| | | 4952 | | { |
| | | 4953 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 4954 | | var callArgs = (IArgumentProvider)callExpr; |
| | | 4955 | | #else |
| | | 4956 | | var callArgs = callExpr.Arguments; |
| | | 4957 | | #endif |
| | | 4958 | | if (!closure.ArgsContainingComplexExpression.Map.ContainsKey(callExpr)) |
| | | 4959 | | { |
| | | 4960 | | if (loadObjByAddress) |
| | | 4961 | | EmitStoreAndLoadLocalVariableAddress(il, objExpr.Type); |
| | | 4962 | | |
| | | 4963 | | for (var i = 0; i < parCount; i++) |
| | | 4964 | | { |
| | | 4965 | | var argExpr = callArgs.GetArgument(i); |
| | | 4966 | | var parType = methodParams[i].ParameterType; |
| | | 4967 | | if (!TryEmit(argExpr, paramExprs, il, ref closure, setup, flags, parType.IsByRef ? i : -1)) |
| | | 4968 | | return false; |
| | | 4969 | | } |
| | | 4970 | | } |
| | | 4971 | | else |
| | | 4972 | | { |
| | | 4973 | | // don't forget to store the object into the variable first, before emitting the arguments |
| | | 4974 | | var objVar = objExpr == null ? -1 : EmitStoreLocalVariable(il, objExpr.Type); |
| | | 4975 | | |
| | | 4976 | | SmallList<int, Stack8<int>> argVars = default; |
| | | 4977 | | for (var i = 0; i < methodParams.Length; i++) |
| | | 4978 | | { |
| | | 4979 | | var argExpr = callArgs.GetArgument(i); |
| | | 4980 | | var parType = methodParams[i].ParameterType; |
| | | 4981 | | if (!TryEmit(argExpr, paramExprs, il, ref closure, setup, flags, parType.IsByRef ? i : -1)) |
| | | 4982 | | return false; |
| | | 4983 | | argVars.Add(EmitStoreLocalVariable(il, parType)); |
| | | 4984 | | } |
| | | 4985 | | |
| | | 4986 | | // restore the object and the args from the variables in the proper order to emit the call |
| | | 4987 | | if (objExpr != null) |
| | | 4988 | | { |
| | | 4989 | | if (loadObjByAddress) |
| | | 4990 | | EmitLoadLocalVariableAddress(il, objVar); |
| | | 4991 | | else |
| | | 4992 | | EmitLoadLocalVariable(il, objVar); |
| | | 4993 | | } |
| | | 4994 | | |
| | | 4995 | | for (var i = 0; i < methodParams.Length; i++) |
| | | 4996 | | EmitLoadLocalVariable(il, argVars[i]); |
| | | 4997 | | } |
| | | 4998 | | } |
| | | 4999 | | |
| | | 5000 | | var ok = true; |
| | | 5001 | | if (!objIsValueType) |
| | | 5002 | | ok = EmitMethodCallOrVirtualCall(il, method); |
| | | 5003 | | else if (method.DeclaringType != typeof(Enum) && |
| | | 5004 | | (!method.IsVirtual || |
| | | 5005 | | method.DeclaringType == objExpr.Type || |
| | | 5006 | | objExpr is ParameterExpression pe && pe.IsByRef)) |
| | | 5007 | | ok = EmitMethodCall(il, method); |
| | | 5008 | | else |
| | | 5009 | | { |
| | | 5010 | | il.Demit(OpCodes.Constrained, objExpr.Type); |
| | | 5011 | | ok = EmitVirtualMethodCall(il, method); |
| | | 5012 | | } |
| | | 5013 | | |
| | | 5014 | | if (byRefIndex != -1) |
| | | 5015 | | EmitStoreAndLoadLocalVariableAddress(il, method.ReturnType); |
| | | 5016 | | |
| | | 5017 | | if (parent.IgnoresResult() && method.ReturnType != typeof(void)) |
| | | 5018 | | il.Demit(OpCodes.Pop); |
| | | 5019 | | |
| | | 5020 | | closure.LastEmitIsAddress = false; |
| | | 5021 | | return ok; |
| | | 5022 | | } |
| | | 5023 | | |
| | | 5024 | | public static bool TryEmitMemberGet(MemberExpression expr, |
| | | 5025 | | #if LIGHT_EXPRESSION |
| | | 5026 | | IParameterProvider paramExprs, |
| | | 5027 | | #else |
| | | 5028 | | IReadOnlyList<PE> paramExprs, |
| | | 5029 | | #endif |
| | | 5030 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent, int byRefIndex = -1) |
| | | 5031 | | { |
| | | 5032 | | var objExpr = expr.Expression; |
| | | 5033 | | if (expr.Member is PropertyInfo prop) |
| | | 5034 | | { |
| | | 5035 | | if (objExpr != null) |
| | | 5036 | | { |
| | | 5037 | | var p = (parent | ParentFlags.InstanceCall) |
| | | 5038 | | // removing ParentFlags.MemberAccess here because we are calling the method instead of acces |
| | | 5039 | | & ~(ParentFlags.IgnoreResult | ParentFlags.MemberAccess | ParentFlags.DupIt | |
| | | 5040 | | ParentFlags.LambdaCall | ParentFlags.ReturnByRef); |
| | | 5041 | | |
| | | 5042 | | if (!TryEmit(objExpr, paramExprs, il, ref closure, setup, p)) |
| | | 5043 | | return false; |
| | | 5044 | | |
| | | 5045 | | if ((parent & ParentFlags.DupIt) != 0) // just duplicate the whatever is emitted for object |
| | | 5046 | | il.Demit(OpCodes.Dup); |
| | | 5047 | | else |
| | | 5048 | | // Value type special treatment to load address of value instance in order to call a method. |
| | | 5049 | | // For the parameters, we will skip the address loading because the `LastEmitIsAddress == tr |
| | | 5050 | | // so the condition here will be skipped |
| | | 5051 | | if (!closure.LastEmitIsAddress && objExpr.Type.IsValueType) |
| | | 5052 | | EmitStoreAndLoadLocalVariableAddress(il, objExpr.Type); |
| | | 5053 | | } |
| | | 5054 | | |
| | | 5055 | | closure.LastEmitIsAddress = false; |
| | | 5056 | | return EmitMethodCallOrVirtualCall(il, prop.GetMethod); |
| | | 5057 | | } |
| | | 5058 | | |
| | | 5059 | | if (expr.Member is FieldInfo field) |
| | | 5060 | | { |
| | | 5061 | | if (objExpr != null) |
| | | 5062 | | { |
| | | 5063 | | var p = (parent | ParentFlags.InstanceAccess | ParentFlags.MemberAccess) |
| | | 5064 | | & ~ParentFlags.IgnoreResult & ~ParentFlags.DupIt; |
| | | 5065 | | |
| | | 5066 | | if (!TryEmit(objExpr, paramExprs, il, ref closure, setup, p)) |
| | | 5067 | | return false; |
| | | 5068 | | |
| | | 5069 | | if (parent.IgnoresResult()) |
| | | 5070 | | { |
| | | 5071 | | il.Demit(OpCodes.Pop); // pop the obj value - it is emitted only for the side effects |
| | | 5072 | | return true; |
| | | 5073 | | } |
| | | 5074 | | |
| | | 5075 | | // #248 indicates that expression is argument passed by ref to Call |
| | | 5076 | | var isByAddress = byRefIndex != -1; |
| | | 5077 | | |
| | | 5078 | | // we are assigning to the field of ValueType so we need its address `val.Bar += 1`, #352 |
| | | 5079 | | if ((parent & ParentFlags.AssignmentLeftValue) != 0 && objExpr.Type.IsValueType) |
| | | 5080 | | isByAddress = true; |
| | | 5081 | | else |
| | | 5082 | | // if the field is not used as an index, #302 |
| | | 5083 | | // or if the field is not accessed from the just constructed object `new Widget().DodgyValue |
| | | 5084 | | if (((parent & ParentFlags.InstanceAccess) != 0 & |
| | | 5085 | | (parent & (ParentFlags.IndexAccess | ParentFlags.Ctor)) == 0) && field.FieldType.IsValue |
| | | 5086 | | isByAddress = true; |
| | | 5087 | | |
| | | 5088 | | // we don't need to duplicate the instance if we are working with the field address to save to i |
| | | 5089 | | // so the field address should be Dupped instead for loading and then storing by-ref for assignm |
| | | 5090 | | // (don't forget to Pop if the assignment should be skipped for nullable with `null` value) |
| | | 5091 | | if ((parent & ParentFlags.DupIt) != 0 & |
| | | 5092 | | (!isByAddress | (parent & ParentFlags.AssignmentLeftValue) == 0)) |
| | | 5093 | | il.Demit(OpCodes.Dup); |
| | | 5094 | | |
| | | 5095 | | closure.LastEmitIsAddress = isByAddress; |
| | | 5096 | | if (!isByAddress) |
| | | 5097 | | { |
| | | 5098 | | if (objExpr.Type.IsEnum) |
| | | 5099 | | EmitStoreAndLoadLocalVariableAddress(il, objExpr.Type); |
| | | 5100 | | il.Demit(OpCodes.Ldfld, field); |
| | | 5101 | | } |
| | | 5102 | | else |
| | | 5103 | | { |
| | | 5104 | | il.Demit(OpCodes.Ldflda, field); |
| | | 5105 | | if ((parent & ParentFlags.AssignmentLeftValue) != 0) |
| | | 5106 | | il.Demit(OpCodes.Dup); |
| | | 5107 | | } |
| | | 5108 | | } |
| | | 5109 | | else if (field.IsLiteral) |
| | | 5110 | | { |
| | | 5111 | | if (parent.IgnoresResult()) |
| | | 5112 | | return true; // do nothing |
| | | 5113 | | var fieldValue = field.GetValue(null); |
| | | 5114 | | if (fieldValue != null) |
| | | 5115 | | return TryEmitConstant(false, null, field.FieldType, fieldValue, il, ref closure); |
| | | 5116 | | il.Demit(OpCodes.Ldnull); |
| | | 5117 | | } |
| | | 5118 | | else |
| | | 5119 | | { |
| | | 5120 | | if (parent.IgnoresResult()) |
| | | 5121 | | return true; // do nothing |
| | | 5122 | | il.Demit(OpCodes.Ldsfld, field); |
| | | 5123 | | } |
| | | 5124 | | return true; |
| | | 5125 | | } |
| | | 5126 | | return false; |
| | | 5127 | | } |
| | | 5128 | | |
| | | 5129 | | // ReSharper disable once FunctionComplexityOverflow |
| | | 5130 | | #if LIGHT_EXPRESSION |
| | | 5131 | | private static bool TryEmitNestedLambda(LambdaExpression lambdaExpr, IParameterProvider outerParamExprs, ILG |
| | | 5132 | | { |
| | | 5133 | | var outerParamExprCount = outerParamExprs.ParameterCount; |
| | | 5134 | | #else |
| | | 5135 | | private static bool TryEmitNestedLambda(LambdaExpression lambdaExpr, IReadOnlyList<PE> outerParamExprs, ILGe |
| | | 5136 | | { |
| | | 5137 | | var outerParamExprCount = outerParamExprs.Count; |
| | | 5138 | | #endif |
| | | 5139 | | // First, find in closed compiled lambdas the one corresponding to the current lambda expression. |
| | | 5140 | | // Situation with not found lambda is not possible/exceptional, |
| | | 5141 | | // it means that we somehow skipped the lambda expression while collecting closure info. |
| | | 5142 | | var outerNestedLambdasCount = closure.NestedLambdas.Count; |
| | | 5143 | | var outerNestedLambdas = closure.NestedLambdas.Items; |
| | | 5144 | | var i = outerNestedLambdasCount - 1; |
| | | 5145 | | while (i != -1 && !outerNestedLambdas[i].HasTheSameLambdaExpression(lambdaExpr)) --i; |
| | | 5146 | | if (i == -1) |
| | | 5147 | | return false; |
| | | 5148 | | |
| | | 5149 | | ref var nestedLambdaInfo = ref outerNestedLambdas[i]; |
| | | 5150 | | EmitLoadLocalVariable(il, nestedLambdaInfo.LambdaVarIndex); |
| | | 5151 | | |
| | | 5152 | | // If lambda does not use any outer parameters to be set in closure, then we're done |
| | | 5153 | | var nonPassedParams = nestedLambdaInfo.NonPassedParameters; |
| | | 5154 | | if (nonPassedParams.Count == 0) |
| | | 5155 | | return true; |
| | | 5156 | | |
| | | 5157 | | //------------------------------------------------------------------- |
| | | 5158 | | // For the lambda with non-passed parameters (or variables) in closure |
| | | 5159 | | |
| | | 5160 | | // Emit the NonPassedParams array for the non-passed parameters and variables |
| | | 5161 | | var nonPassedParamsCount = nonPassedParams.Count; |
| | | 5162 | | EmitLoadConstantInt(il, nonPassedParamsCount); // load the length of array |
| | | 5163 | | il.Demit(OpCodes.Newarr, typeof(object)); |
| | | 5164 | | var nonPassedParamsVarIndex = EmitStoreAndLoadLocalVariable(il, typeof(object[])); |
| | | 5165 | | nestedLambdaInfo.NonPassedParamsVarIndex = (short)nonPassedParamsVarIndex; |
| | | 5166 | | |
| | | 5167 | | // Store the NonPassedParams back into the NestedLambda wrapper for the #437. |
| | | 5168 | | // Also, it is needed to be able to assign the closed variable after the closure is passed to the lambda |
| | | 5169 | | // e.g. `var x = 1; var f = () => x + 1; x = 2; f();` expects 3, not 2 |
| | | 5170 | | il.Demit(OpCodes.Stfld, NestedLambdaForNonPassedParams.NonPassedParamsField); |
| | | 5171 | | |
| | | 5172 | | // Populate the NonPassedParams array |
| | | 5173 | | for (var nestedParamIndex = 0; nestedParamIndex < nonPassedParamsCount; ++nestedParamIndex) |
| | | 5174 | | { |
| | | 5175 | | // todo: @wip move this code to where the assignment and by-ref parameter passing |
| | | 5176 | | Debug.Assert(nestedParamIndex < 64, "Assume that we don't have more than 64 mutated non-passed param |
| | | 5177 | | if (nonPassedParamsCount < 64) |
| | | 5178 | | nestedLambdaInfo.NonPassedParamMutatedIndexBits |= 1UL << nestedParamIndex; |
| | | 5179 | | |
| | | 5180 | | // Load the array and index where to store the item |
| | | 5181 | | EmitLoadLocalVariable(il, nonPassedParamsVarIndex); |
| | | 5182 | | EmitLoadConstantInt(il, nestedParamIndex); |
| | | 5183 | | |
| | | 5184 | | var nestedParam = nonPassedParams.GetSurePresentItemRef(nestedParamIndex); |
| | | 5185 | | var outerParamIndex = outerParamExprCount - 1; |
| | | 5186 | | while (outerParamIndex != -1 && !ReferenceEquals(outerParamExprs.GetParameter(outerParamIndex), nest |
| | | 5187 | | --outerParamIndex; |
| | | 5188 | | if (outerParamIndex != -1) // load parameter from input outer params |
| | | 5189 | | { |
| | | 5190 | | // Add `+1` to index because the `0` index is for the closure argument |
| | | 5191 | | EmitLoadArg(il, outerParamIndex + 1); |
| | | 5192 | | il.TryEmitBoxOf(nestedParam.Type); |
| | | 5193 | | } |
| | | 5194 | | else // load parameter from outer closure or from the local variables |
| | | 5195 | | { |
| | | 5196 | | var outerLocalVarIndex = closure.GetDefinedLocalVarOrDefault(nestedParam); |
| | | 5197 | | if (outerLocalVarIndex != -1) // it's a local variable |
| | | 5198 | | { |
| | | 5199 | | EmitLoadLocalVariable(il, outerLocalVarIndex); |
| | | 5200 | | il.TryEmitBoxOf(nestedParam.Type); |
| | | 5201 | | } |
| | | 5202 | | else // it's a parameter from the outer closure |
| | | 5203 | | { |
| | | 5204 | | var outerNonPassedParamIndex = closure.NonPassedParameters.TryGetIndex(nestedParam, default( |
| | | 5205 | | if (outerNonPassedParamIndex == -1) |
| | | 5206 | | return false; // impossible, return error code 2 the same as in TryCollectInfo |
| | | 5207 | | |
| | | 5208 | | // Load the parameter from outer closure `Items` array |
| | | 5209 | | il.Demit(OpCodes.Ldarg_0); // closure is always a first argument |
| | | 5210 | | il.Demit(OpCodes.Ldfld, ArrayClosureWithNonPassedParamsField); |
| | | 5211 | | EmitLoadConstantInt(il, outerNonPassedParamIndex); |
| | | 5212 | | il.Demit(OpCodes.Ldelem_Ref); |
| | | 5213 | | } |
| | | 5214 | | } |
| | | 5215 | | |
| | | 5216 | | // Store the item into nested lambda array |
| | | 5217 | | il.Demit(OpCodes.Stelem_Ref); |
| | | 5218 | | } |
| | | 5219 | | |
| | | 5220 | | // Load the actual lambda delegate on stack |
| | | 5221 | | EmitLoadLocalVariable(il, nestedLambdaInfo.LambdaVarIndex); |
| | | 5222 | | il.Demit(OpCodes.Ldfld, NestedLambdaForNonPassedParams.NestedLambdaField); |
| | | 5223 | | |
| | | 5224 | | // Load the nonPassedParams as a first argument of closure |
| | | 5225 | | EmitLoadLocalVariable(il, nonPassedParamsVarIndex); |
| | | 5226 | | |
| | | 5227 | | // Load the constants as a second argument and call the closure constructor |
| | | 5228 | | var lambda = nestedLambdaInfo.Lambda; |
| | | 5229 | | if (lambda is NestedLambdaForNonPassedParamsWithConstants) |
| | | 5230 | | { |
| | | 5231 | | EmitLoadLocalVariable(il, nestedLambdaInfo.LambdaVarIndex); |
| | | 5232 | | il.Demit(OpCodes.Ldfld, NestedLambdaForNonPassedParamsWithConstants.ConstantsAndNestedLambdasField); |
| | | 5233 | | il.Demit(OpCodes.Newobj, ArrayClosureWithNonPassedParamsAndConstantsCtor); |
| | | 5234 | | } |
| | | 5235 | | else |
| | | 5236 | | il.Demit(OpCodes.Newobj, ArrayClosureWithNonPassedParamsCtor); |
| | | 5237 | | |
| | | 5238 | | // Call the `Curry` method with the nested lambda and closure to produce a closed lambda with the expect |
| | | 5239 | | var lambdaType = (lambda is NestedLambdaForNonPassedParams lp ? lp.NestedLambda : lambda).GetType(); |
| | | 5240 | | var lambdaTypeArgs = lambdaType.GetGenericArguments(); |
| | | 5241 | | var nestedLambdaExpr = nestedLambdaInfo.LambdaExpression; |
| | | 5242 | | var closureMethod = nestedLambdaExpr.ReturnType == typeof(void) |
| | | 5243 | | ? CurryClosureActions.Methods[lambdaTypeArgs.Length - 1].MakeGenericMethod(lambdaTypeArgs) |
| | | 5244 | | : CurryClosureFuncs.Methods[lambdaTypeArgs.Length - 2].MakeGenericMethod(lambdaTypeArgs); |
| | | 5245 | | |
| | | 5246 | | var ok = EmitMethodCall(il, closureMethod); |
| | | 5247 | | |
| | | 5248 | | // Convert to the original possibly custom delegate type, see #308 |
| | | 5249 | | if (closureMethod.ReturnType != nestedLambdaExpr.Type) |
| | | 5250 | | { |
| | | 5251 | | il.Demit(OpCodes.Ldftn, closureMethod.ReturnType.FindDelegateInvokeMethod()); |
| | | 5252 | | il.Demit(OpCodes.Newobj, nestedLambdaExpr.Type.GetConstructors()[0]); |
| | | 5253 | | } |
| | | 5254 | | |
| | | 5255 | | return ok; |
| | | 5256 | | } |
| | | 5257 | | |
| | | 5258 | | #if LIGHT_EXPRESSION |
| | | 5259 | | private static bool TryEmitInvoke(InvocationExpression expr, IParameterProvider paramExprs, ILGenerator il, |
| | | 5260 | | CompilerFlags setup, ParentFlags parent) |
| | | 5261 | | { |
| | | 5262 | | var paramCount = paramExprs.ParameterCount; |
| | | 5263 | | #else |
| | | 5264 | | private static bool TryEmitInvoke(InvocationExpression expr, IReadOnlyList<PE> paramExprs, ILGenerator il, r |
| | | 5265 | | CompilerFlags setup, ParentFlags parent) |
| | | 5266 | | { |
| | | 5267 | | var paramCount = paramExprs.Count; |
| | | 5268 | | #endif |
| | | 5269 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 5270 | | var argExprs = (IArgumentProvider)expr; |
| | | 5271 | | #else |
| | | 5272 | | var argExprs = expr.Arguments; |
| | | 5273 | | #endif |
| | | 5274 | | var argCount = argExprs.GetCount(); |
| | | 5275 | | var invokedExpr = expr.Expression; |
| | | 5276 | | if ((setup & CompilerFlags.NoInvocationLambdaInlining) == 0 && invokedExpr is LambdaExpression lambdaExp |
| | | 5277 | | { |
| | | 5278 | | parent |= ParentFlags.InlinedLambdaInvoke; |
| | | 5279 | | |
| | | 5280 | | ref var inlinedExpr = ref closure.InlinedLambdaInvocation.Map.AddOrGetValueRef(expr, out var found); |
| | | 5281 | | Debug.Assert(found, "The invocation expression should be collected in TryCollectInfo but it is not") |
| | | 5282 | | if (!found) |
| | | 5283 | | return false; |
| | | 5284 | | |
| | | 5285 | | if (!TryEmit(inlinedExpr, paramExprs, il, ref closure, setup, parent)) |
| | | 5286 | | return false; |
| | | 5287 | | |
| | | 5288 | | if ((parent & ParentFlags.IgnoreResult) == 0 && inlinedExpr.Type != typeof(void)) |
| | | 5289 | | { |
| | | 5290 | | // find if the variable with the result is exist in the label infos |
| | | 5291 | | ref var label = ref closure.LambdaInvokeStackLabels.GetLabelOrInvokeIndexByTarget(expr, out var |
| | | 5292 | | if (labelFound) |
| | | 5293 | | { |
| | | 5294 | | var returnVariableIndexPlusOne = label.ReturnVariableIndexPlusOneAndIsDefined >>> 1; |
| | | 5295 | | if (returnVariableIndexPlusOne != 0) |
| | | 5296 | | { |
| | | 5297 | | il.DmarkLabel(label.ReturnLabel); |
| | | 5298 | | EmitLoadLocalVariable(il, returnVariableIndexPlusOne - 1); |
| | | 5299 | | } |
| | | 5300 | | } |
| | | 5301 | | } |
| | | 5302 | | return true; |
| | | 5303 | | } |
| | | 5304 | | |
| | | 5305 | | if (!TryEmit(invokedExpr, paramExprs, il, ref closure, setup, parent & ~ParentFlags.IgnoreResult)) // re |
| | | 5306 | | return false; |
| | | 5307 | | |
| | | 5308 | | //if (lambda is ConstantExpression lambdaConst) // todo: @perf opportunity to optimize |
| | | 5309 | | // delegateInvokeMethod = ((Delegate)lambdaConst.Value).GetMethodInfo(); |
| | | 5310 | | //else |
| | | 5311 | | var delegateInvokeMethod = invokedExpr.Type.FindDelegateInvokeMethod(); // todo: @perf bad thingy |
| | | 5312 | | if (argCount != 0) |
| | | 5313 | | { |
| | | 5314 | | var useResult = parent & ~ParentFlags.IgnoreResult & ~ParentFlags.InstanceAccess; |
| | | 5315 | | var args = delegateInvokeMethod.GetParameters(); // todo: @perf avoid this if possible |
| | | 5316 | | for (var i = 0; i < args.Length; ++i) |
| | | 5317 | | { |
| | | 5318 | | var argExpr = argExprs.GetArgument(i); |
| | | 5319 | | if (!TryEmit(argExpr, paramExprs, il, ref closure, setup, useResult, args[i].ParameterType.IsByR |
| | | 5320 | | return false; |
| | | 5321 | | } |
| | | 5322 | | } |
| | | 5323 | | |
| | | 5324 | | EmitMethodCall(il, delegateInvokeMethod); |
| | | 5325 | | if ((parent & ParentFlags.IgnoreResult) != 0 && delegateInvokeMethod.ReturnType != typeof(void)) |
| | | 5326 | | il.Demit(OpCodes.Pop); |
| | | 5327 | | |
| | | 5328 | | return true; |
| | | 5329 | | } |
| | | 5330 | | |
| | | 5331 | | #if LIGHT_EXPRESSION |
| | | 5332 | | private static bool TryEmitSwitch(SwitchExpression expr, IParameterProvider paramExprs, ILGenerator il, ref |
| | | 5333 | | CompilerFlags setup, ParentFlags parent) |
| | | 5334 | | #else |
| | | 5335 | | private static bool TryEmitSwitch(SwitchExpression expr, IReadOnlyList<PE> paramExprs, ILGenerator il, ref C |
| | | 5336 | | CompilerFlags setup, ParentFlags parent) |
| | | 5337 | | #endif |
| | | 5338 | | { |
| | | 5339 | | // todo: @perf #398 use switch statement for int comparison, e.g. if int difference is less or equal 3 - |
| | | 5340 | | var switchValueExpr = expr.SwitchValue; |
| | | 5341 | | var customEqualMethod = expr.Comparison; |
| | | 5342 | | var cases = expr.Cases; |
| | | 5343 | | var caseCount = cases.Count; |
| | | 5344 | | if (caseCount == 1 && expr.DefaultBody != null) |
| | | 5345 | | { |
| | | 5346 | | // optimization for the single case |
| | | 5347 | | // todo: @perf make a similar one for the two cases, probably use the two IfThenElses emit |
| | | 5348 | | var cs0 = cases[0]; |
| | | 5349 | | if (cs0.TestValues.Count == 1) |
| | | 5350 | | { |
| | | 5351 | | Expression testExpr; |
| | | 5352 | | if (customEqualMethod == null) |
| | | 5353 | | { |
| | | 5354 | | // todo: @perf avoid creation of the additional expression |
| | | 5355 | | testExpr = Equal(switchValueExpr, cs0.TestValues[0]); |
| | | 5356 | | if (Interpreter.TryInterpretBool(out var testResult, testExpr, setup)) |
| | | 5357 | | return TryEmit(testResult ? cs0.Body : expr.DefaultBody, paramExprs, il, ref closure, se |
| | | 5358 | | } |
| | | 5359 | | else |
| | | 5360 | | testExpr = Call(customEqualMethod, switchValueExpr, cs0.TestValues[0]); |
| | | 5361 | | |
| | | 5362 | | return TryEmitConditional(testExpr, cs0.Body, expr.DefaultBody, paramExprs, il, ref closure, set |
| | | 5363 | | } |
| | | 5364 | | } |
| | | 5365 | | |
| | | 5366 | | var switchValueType = switchValueExpr.Type; |
| | | 5367 | | var switchValueIsNullable = switchValueType.IsNullable(); |
| | | 5368 | | Type switchNullableUnderlyingValueType = null; |
| | | 5369 | | MethodInfo switchNullableHasValueMethod = null; |
| | | 5370 | | FieldInfo switchNullableUnsafeValueField = null; |
| | | 5371 | | if (switchValueIsNullable) |
| | | 5372 | | { |
| | | 5373 | | switchNullableUnderlyingValueType = Nullable.GetUnderlyingType(switchValueType); |
| | | 5374 | | switchNullableHasValueMethod = switchValueType.GetNullableHasValueGetterMethod(); |
| | | 5375 | | switchNullableUnsafeValueField = switchValueType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod(); |
| | | 5376 | | } |
| | | 5377 | | |
| | | 5378 | | var checkType = switchNullableUnderlyingValueType ?? switchValueType; |
| | | 5379 | | var equalityMethod = customEqualMethod != null |
| | | 5380 | | ? customEqualMethod |
| | | 5381 | | : !checkType.IsPrimitive && !checkType.IsEnum |
| | | 5382 | | ? FindBinaryOperandMethod("op_Equality", switchValueType, switchValueType, switchValueType, type |
| | | 5383 | | ?? _objectEqualsMethod |
| | | 5384 | | : null; |
| | | 5385 | | |
| | | 5386 | | var operandParent = parent & ~ParentFlags.IgnoreResult & ~ParentFlags.InstanceAccess; |
| | | 5387 | | var isEqualityMethodForUnderlyingNullable = false; |
| | | 5388 | | int param0ByRefIndex = -1, param1ByRefIndex = -1; |
| | | 5389 | | if (equalityMethod != null) |
| | | 5390 | | { |
| | | 5391 | | operandParent |= ParentFlags.Call; |
| | | 5392 | | var paramInfos = equalityMethod.GetParameters(); |
| | | 5393 | | Debug.Assert(paramInfos.Length == 2); |
| | | 5394 | | var paramType = paramInfos[0].ParameterType; |
| | | 5395 | | isEqualityMethodForUnderlyingNullable = paramType == switchNullableUnderlyingValueType; |
| | | 5396 | | if (paramType.IsByRef) |
| | | 5397 | | param0ByRefIndex = 0; |
| | | 5398 | | if (paramInfos[1].ParameterType.IsByRef) |
| | | 5399 | | param1ByRefIndex = 1; |
| | | 5400 | | } |
| | | 5401 | | |
| | | 5402 | | // Emit the switch value once and store it in the local variable for comparison in cases below |
| | | 5403 | | if (!TryEmit(switchValueExpr, paramExprs, il, ref closure, setup, operandParent, param0ByRefIndex)) |
| | | 5404 | | return false; |
| | | 5405 | | |
| | | 5406 | | if (caseCount == 0) // see #440 |
| | | 5407 | | { |
| | | 5408 | | il.Demit(OpCodes.Pop); // remove the switch value result |
| | | 5409 | | return expr.DefaultBody == null || |
| | | 5410 | | TryEmit(expr.DefaultBody, paramExprs, il, ref closure, setup, parent); |
| | | 5411 | | } |
| | | 5412 | | |
| | | 5413 | | var switchValueVar = EmitStoreLocalVariable(il, switchValueType); |
| | | 5414 | | |
| | | 5415 | | var switchEndLabel = il.DefineLabel(); |
| | | 5416 | | var caseLabels = new Label[caseCount]; |
| | | 5417 | | |
| | | 5418 | | for (var caseIndex = 0; caseIndex < caseLabels.Length; ++caseIndex) |
| | | 5419 | | { |
| | | 5420 | | var cs = cases[caseIndex]; |
| | | 5421 | | var caseBodyLabel = il.DefineLabel(); |
| | | 5422 | | caseLabels[caseIndex] = caseBodyLabel; |
| | | 5423 | | |
| | | 5424 | | foreach (var caseTestValue in cs.TestValues) |
| | | 5425 | | { |
| | | 5426 | | if (!switchValueIsNullable) |
| | | 5427 | | { |
| | | 5428 | | EmitLoadLocalVariable(il, switchValueVar); |
| | | 5429 | | if (!TryEmit(caseTestValue, paramExprs, il, ref closure, setup, operandParent, param1ByRefIn |
| | | 5430 | | return false; |
| | | 5431 | | if (equalityMethod == null) |
| | | 5432 | | { |
| | | 5433 | | il.Demit(OpCodes.Beq, caseBodyLabel); |
| | | 5434 | | continue; |
| | | 5435 | | } |
| | | 5436 | | |
| | | 5437 | | if (!EmitMethodCall(il, equalityMethod)) |
| | | 5438 | | return false; |
| | | 5439 | | il.Demit(OpCodes.Brtrue, caseBodyLabel); |
| | | 5440 | | continue; |
| | | 5441 | | } |
| | | 5442 | | |
| | | 5443 | | if (equalityMethod != null & !isEqualityMethodForUnderlyingNullable) |
| | | 5444 | | { |
| | | 5445 | | EmitLoadLocalVariable(il, switchValueVar); |
| | | 5446 | | if (!TryEmit(caseTestValue, paramExprs, il, ref closure, setup, operandParent, param1ByRefIn |
| | | 5447 | | !EmitMethodCall(il, equalityMethod)) |
| | | 5448 | | return false; |
| | | 5449 | | il.Demit(OpCodes.Brtrue, caseBodyLabel); |
| | | 5450 | | continue; |
| | | 5451 | | } |
| | | 5452 | | |
| | | 5453 | | if (equalityMethod == null) |
| | | 5454 | | { |
| | | 5455 | | // short-circuit the comparison with the null, if the switch value has value == false the le |
| | | 5456 | | if (caseTestValue is ConstantExpression r && r.Value == null) |
| | | 5457 | | { |
| | | 5458 | | EmitLoadLocalVariableAddress(il, switchValueVar); |
| | | 5459 | | EmitMethodCall(il, switchNullableHasValueMethod); |
| | | 5460 | | il.Demit(OpCodes.Brfalse, caseBodyLabel); |
| | | 5461 | | continue; |
| | | 5462 | | } |
| | | 5463 | | } |
| | | 5464 | | |
| | | 5465 | | // Compare the switch value with the case value via Ceq or comparison method and then compare th |
| | | 5466 | | EmitLoadLocalVariableAddress(il, switchValueVar); |
| | | 5467 | | il.Demit(OpCodes.Ldfld, switchNullableUnsafeValueField); |
| | | 5468 | | if (!TryEmit(caseTestValue, paramExprs, il, ref closure, setup, operandParent, param1ByRefIndex) |
| | | 5469 | | return false; |
| | | 5470 | | var caseValueVar = EmitStoreAndLoadLocalVariableAddress(il, switchValueType); |
| | | 5471 | | il.Demit(OpCodes.Ldfld, switchNullableUnsafeValueField); |
| | | 5472 | | if (equalityMethod == null) |
| | | 5473 | | il.Demit(OpCodes.Ceq); |
| | | 5474 | | else if (!EmitMethodCall(il, equalityMethod)) |
| | | 5475 | | return false; |
| | | 5476 | | |
| | | 5477 | | EmitLoadLocalVariableAddress(il, switchValueVar); |
| | | 5478 | | EmitMethodCall(il, switchNullableHasValueMethod); |
| | | 5479 | | EmitLoadLocalVariableAddress(il, caseValueVar); |
| | | 5480 | | EmitMethodCall(il, switchNullableHasValueMethod); |
| | | 5481 | | il.Demit(OpCodes.Ceq); |
| | | 5482 | | |
| | | 5483 | | il.Demit(OpCodes.And); // both the Nullable values and HashValue results need to be true |
| | | 5484 | | il.Demit(OpCodes.Brtrue, caseBodyLabel); |
| | | 5485 | | } |
| | | 5486 | | } |
| | | 5487 | | |
| | | 5488 | | var defaultBody = expr.DefaultBody; |
| | | 5489 | | if (defaultBody == null) |
| | | 5490 | | { |
| | | 5491 | | // hop over the cases bodies right to the end of switch |
| | | 5492 | | il.Demit(OpCodes.Br, switchEndLabel); |
| | | 5493 | | } |
| | | 5494 | | else |
| | | 5495 | | { |
| | | 5496 | | if (!TryEmit(defaultBody, paramExprs, il, ref closure, setup, parent)) |
| | | 5497 | | return false; |
| | | 5498 | | // as we are at the end, no need to jump to it |
| | | 5499 | | il.Demit(OpCodes.Br, switchEndLabel); |
| | | 5500 | | } |
| | | 5501 | | |
| | | 5502 | | for (var caseIndex = 0; caseIndex < caseLabels.Length; ++caseIndex) |
| | | 5503 | | { |
| | | 5504 | | il.DmarkLabel(caseLabels[caseIndex]); |
| | | 5505 | | var cs = cases[caseIndex]; |
| | | 5506 | | if (!TryEmit(cs.Body, paramExprs, il, ref closure, setup, parent)) |
| | | 5507 | | return false; |
| | | 5508 | | |
| | | 5509 | | il.Demit(OpCodes.Br, switchEndLabel); |
| | | 5510 | | } |
| | | 5511 | | |
| | | 5512 | | il.DmarkLabel(switchEndLabel); |
| | | 5513 | | return true; |
| | | 5514 | | } |
| | | 5515 | | |
| | | 5516 | | |
| | | 5517 | | // todo: @perf cache found method, because for some cases there many methods to search from, e.g. 157 method |
| | | 5518 | | private static MethodInfo FindBinaryOperandMethod( |
| | | 5519 | | string methodName, Type sourceType, Type leftOpType, Type rightOpType, Type resultType) |
| | | 5520 | | { |
| | | 5521 | | var methods = sourceType.GetMethods(); |
| | | 5522 | | for (var i = 0; i < methods.Length; i++) |
| | | 5523 | | { |
| | | 5524 | | var m = methods[i]; |
| | | 5525 | | if (m.IsSpecialName && m.IsStatic && m.Name == methodName && m.ReturnType == resultType) |
| | | 5526 | | { |
| | | 5527 | | var ps = m.GetParameters(); |
| | | 5528 | | if (ps.Length == 2 && ps[0].ParameterType == leftOpType && ps[1].ParameterType == rightOpType) |
| | | 5529 | | return m; |
| | | 5530 | | } |
| | | 5531 | | } |
| | | 5532 | | return null; |
| | | 5533 | | } |
| | | 5534 | | |
| | | 5535 | | private static bool TryEmitComparison( |
| | | 5536 | | Expression left, Expression right, Type exprType, ExpressionType nodeType, |
| | | 5537 | | #if LIGHT_EXPRESSION |
| | | 5538 | | IParameterProvider paramExprs, |
| | | 5539 | | #else |
| | | 5540 | | IReadOnlyList<PE> paramExprs, |
| | | 5541 | | #endif |
| | | 5542 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 5543 | | { |
| | | 5544 | | var leftType = left.Type; |
| | | 5545 | | var leftIsNullable = leftType.IsNullable(); |
| | | 5546 | | var rightType = right.Type; |
| | | 5547 | | |
| | | 5548 | | // If one operand is `null` then the equality comparison can be simplified to `ldnull, ceq` |
| | | 5549 | | var rightIsNull = IsNullContainingExpression(right); |
| | | 5550 | | var comparingToRightNull = rightIsNull & rightType.IsClass; |
| | | 5551 | | |
| | | 5552 | | // Coalesce the right object type to the more specific left type |
| | | 5553 | | if (comparingToRightNull & rightType == typeof(object)) |
| | | 5554 | | rightType = leftType; |
| | | 5555 | | |
| | | 5556 | | var leftIsNull = IsNullContainingExpression(left); |
| | | 5557 | | var comparingToLeftNull = leftIsNull & leftType.IsClass; |
| | | 5558 | | if (!comparingToRightNull && comparingToLeftNull & leftType == typeof(object)) |
| | | 5559 | | leftType = rightType; |
| | | 5560 | | |
| | | 5561 | | var operandParent = parent & ~ParentFlags.IgnoreResult & ~ParentFlags.InstanceAccess; |
| | | 5562 | | |
| | | 5563 | | // short-circuit the comparison with null on the right |
| | | 5564 | | var isEqualityOp = nodeType == ExpressionType.Equal | nodeType == ExpressionType.NotEqual; |
| | | 5565 | | if (isEqualityOp) |
| | | 5566 | | { |
| | | 5567 | | if (leftIsNullable & rightIsNull) |
| | | 5568 | | { |
| | | 5569 | | if (!TryEmit(left, paramExprs, il, ref closure, setup, operandParent)) |
| | | 5570 | | return false; |
| | | 5571 | | |
| | | 5572 | | // See #341 `Nullable_decimal_parameter_with_decimal_constant_comparison_cases` |
| | | 5573 | | if (!closure.LastEmitIsAddress && !(left is ParameterExpression p && p.IsByRef)) // Nullable typ |
| | | 5574 | | EmitStoreAndLoadLocalVariableAddress(il, leftType); |
| | | 5575 | | |
| | | 5576 | | EmitMethodCall(il, leftType.GetNullableHasValueGetterMethod()); |
| | | 5577 | | if (nodeType == ExpressionType.Equal) |
| | | 5578 | | EmitEqualToZeroOrNull(il); |
| | | 5579 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 5580 | | } |
| | | 5581 | | |
| | | 5582 | | if (leftIsNull && rightType.IsNullable()) |
| | | 5583 | | { |
| | | 5584 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, operandParent)) |
| | | 5585 | | return false; |
| | | 5586 | | |
| | | 5587 | | if (!closure.LastEmitIsAddress && !(right is ParameterExpression p && p.IsByRef)) |
| | | 5588 | | EmitStoreAndLoadLocalVariableAddress(il, rightType); |
| | | 5589 | | |
| | | 5590 | | EmitMethodCall(il, rightType.GetNullableHasValueGetterMethod()); |
| | | 5591 | | if (nodeType == ExpressionType.Equal) |
| | | 5592 | | EmitEqualToZeroOrNull(il); |
| | | 5593 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 5594 | | } |
| | | 5595 | | } |
| | | 5596 | | |
| | | 5597 | | var lVarIndex = -1; |
| | | 5598 | | var rightIsComplexExpression = false; |
| | | 5599 | | // just load the `null` later when done with the right operand, without need for go to nested TryEmit ca |
| | | 5600 | | // and store, load the left result for the complex expressions, see `IsComplexExpression` and #422 |
| | | 5601 | | if (!leftIsNull) |
| | | 5602 | | { |
| | | 5603 | | if (!TryEmit(left, paramExprs, il, ref closure, setup, operandParent)) |
| | | 5604 | | return false; |
| | | 5605 | | |
| | | 5606 | | // save the left result to restore it later after the complex expression, see #422 |
| | | 5607 | | if (rightIsComplexExpression = right.IsComplexExpression()) |
| | | 5608 | | lVarIndex = EmitStoreLocalVariable(il, leftType); |
| | | 5609 | | else if (leftIsNullable) |
| | | 5610 | | { |
| | | 5611 | | lVarIndex = EmitStoreAndLoadLocalVariableAddress(il, leftType); |
| | | 5612 | | il.Demit(OpCodes.Ldfld, leftType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 5613 | | leftType = Nullable.GetUnderlyingType(leftType); |
| | | 5614 | | } |
| | | 5615 | | } |
| | | 5616 | | |
| | | 5617 | | if (rightIsNull) |
| | | 5618 | | il.Demit(OpCodes.Ldnull); |
| | | 5619 | | else if (!TryEmit(right, paramExprs, il, ref closure, setup, operandParent)) |
| | | 5620 | | return false; |
| | | 5621 | | |
| | | 5622 | | if (comparingToLeftNull | comparingToRightNull || |
| | | 5623 | | (leftType != rightType && leftType.IsClass && rightType.IsClass && |
| | | 5624 | | (leftType == typeof(object) | rightType == typeof(object)))) |
| | | 5625 | | { |
| | | 5626 | | // If the operation is not Equal or NotEqual then comparison with null is not possible |
| | | 5627 | | if (!isEqualityOp) |
| | | 5628 | | return false; |
| | | 5629 | | |
| | | 5630 | | if (leftIsNull) |
| | | 5631 | | il.Demit(OpCodes.Ldnull); |
| | | 5632 | | else if (rightIsComplexExpression) |
| | | 5633 | | EmitLoadLocalVariable(il, lVarIndex); // the order of comparison does not matter, because equali |
| | | 5634 | | |
| | | 5635 | | il.Demit(OpCodes.Ceq); |
| | | 5636 | | if (nodeType == ExpressionType.NotEqual) |
| | | 5637 | | EmitEqualToZeroOrNull(il); |
| | | 5638 | | |
| | | 5639 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 5640 | | } |
| | | 5641 | | |
| | | 5642 | | var rVarIndex = -1; |
| | | 5643 | | if (rightIsComplexExpression) |
| | | 5644 | | { |
| | | 5645 | | rVarIndex = EmitStoreLocalVariable(il, rightType); |
| | | 5646 | | if (!leftIsNullable) |
| | | 5647 | | EmitLoadLocalVariable(il, lVarIndex); |
| | | 5648 | | else |
| | | 5649 | | { |
| | | 5650 | | EmitLoadLocalVariableAddress(il, lVarIndex); |
| | | 5651 | | il.Demit(OpCodes.Ldfld, leftType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 5652 | | leftType = Nullable.GetUnderlyingType(leftType); |
| | | 5653 | | } |
| | | 5654 | | |
| | | 5655 | | if (!rightType.IsNullable()) |
| | | 5656 | | EmitLoadLocalVariable(il, rVarIndex); |
| | | 5657 | | else |
| | | 5658 | | { |
| | | 5659 | | EmitLoadLocalVariableAddress(il, rVarIndex); |
| | | 5660 | | il.Demit(OpCodes.Ldfld, rightType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 5661 | | rightType = Nullable.GetUnderlyingType(rightType); |
| | | 5662 | | } |
| | | 5663 | | } |
| | | 5664 | | else if (leftIsNull) |
| | | 5665 | | { |
| | | 5666 | | // here we're handling only non-nullable right, the nullable right with null left is handled above |
| | | 5667 | | rVarIndex = EmitStoreLocalVariable(il, rightType); |
| | | 5668 | | il.Demit(OpCodes.Ldnull); |
| | | 5669 | | EmitLoadLocalVariable(il, rVarIndex); |
| | | 5670 | | } |
| | | 5671 | | else if (rightType.IsNullable()) |
| | | 5672 | | { |
| | | 5673 | | rVarIndex = EmitStoreAndLoadLocalVariableAddress(il, rightType); |
| | | 5674 | | il.Demit(OpCodes.Ldfld, rightType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 5675 | | rightType = Nullable.GetUnderlyingType(rightType); |
| | | 5676 | | } |
| | | 5677 | | |
| | | 5678 | | if (!leftType.IsPrimitive && !leftType.IsEnum) |
| | | 5679 | | { |
| | | 5680 | | var methodName |
| | | 5681 | | = nodeType == ExpressionType.Equal ? "op_Equality" |
| | | 5682 | | : nodeType == ExpressionType.NotEqual ? "op_Inequality" |
| | | 5683 | | : nodeType == ExpressionType.GreaterThan ? "op_GreaterThan" |
| | | 5684 | | : nodeType == ExpressionType.GreaterThanOrEqual ? "op_GreaterThanOrEqual" |
| | | 5685 | | : nodeType == ExpressionType.LessThan ? "op_LessThan" |
| | | 5686 | | : nodeType == ExpressionType.LessThanOrEqual ? "op_LessThanOrEqual" |
| | | 5687 | | : null; |
| | | 5688 | | if (methodName == null) |
| | | 5689 | | return false; |
| | | 5690 | | |
| | | 5691 | | var method = FindBinaryOperandMethod(methodName, leftType, leftType, rightType, typeof(bool)); |
| | | 5692 | | if (method == null & leftType != rightType) |
| | | 5693 | | method = FindBinaryOperandMethod(methodName, rightType, leftType, rightType, typeof(bool)); |
| | | 5694 | | if (method != null) |
| | | 5695 | | { |
| | | 5696 | | var ok = EmitMethodCall(il, method); |
| | | 5697 | | if (leftIsNullable) |
| | | 5698 | | goto nullableCheck; |
| | | 5699 | | return ok; |
| | | 5700 | | } |
| | | 5701 | | |
| | | 5702 | | if (!isEqualityOp) |
| | | 5703 | | return false; // todo: @unclear what is the alternative? |
| | | 5704 | | |
| | | 5705 | | EmitMethodCall(il, _objectEqualsMethod); |
| | | 5706 | | if (nodeType == ExpressionType.NotEqual) // invert result for not equal |
| | | 5707 | | EmitEqualToZeroOrNull(il); |
| | | 5708 | | |
| | | 5709 | | if (leftIsNullable) |
| | | 5710 | | goto nullableCheck; |
| | | 5711 | | |
| | | 5712 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 5713 | | } |
| | | 5714 | | |
| | | 5715 | | // handle primitives comparison |
| | | 5716 | | switch (nodeType) |
| | | 5717 | | { |
| | | 5718 | | case ExpressionType.Equal: |
| | | 5719 | | il.Demit(OpCodes.Ceq); |
| | | 5720 | | break; |
| | | 5721 | | case ExpressionType.NotEqual: |
| | | 5722 | | il.Demit(OpCodes.Ceq); |
| | | 5723 | | EmitEqualToZeroOrNull(il); |
| | | 5724 | | break; |
| | | 5725 | | case ExpressionType.LessThan: |
| | | 5726 | | il.Demit(OpCodes.Clt); |
| | | 5727 | | break; |
| | | 5728 | | case ExpressionType.GreaterThan: |
| | | 5729 | | il.Demit(OpCodes.Cgt); |
| | | 5730 | | break; |
| | | 5731 | | case ExpressionType.GreaterThanOrEqual: |
| | | 5732 | | // simplifying by using the LessThen (Clt) and comparing with negative outcome (Ceq 0) |
| | | 5733 | | if (leftType.IsUnsigned() && rightType.IsUnsigned() || |
| | | 5734 | | (leftType.IsFloatingPoint() || rightType.IsFloatingPoint())) |
| | | 5735 | | il.Demit(OpCodes.Clt_Un); |
| | | 5736 | | else |
| | | 5737 | | il.Demit(OpCodes.Clt); |
| | | 5738 | | EmitEqualToZeroOrNull(il); |
| | | 5739 | | break; |
| | | 5740 | | case ExpressionType.LessThanOrEqual: |
| | | 5741 | | // simplifying by using the GreaterThen (Cgt) and comparing with negative outcome (Ceq 0) |
| | | 5742 | | if (leftType.IsUnsigned() && rightType.IsUnsigned() || |
| | | 5743 | | (leftType.IsFloatingPoint() || rightType.IsFloatingPoint())) |
| | | 5744 | | il.Demit(OpCodes.Cgt_Un); |
| | | 5745 | | else |
| | | 5746 | | il.Demit(OpCodes.Cgt); |
| | | 5747 | | EmitEqualToZeroOrNull(il); |
| | | 5748 | | break; |
| | | 5749 | | |
| | | 5750 | | default: |
| | | 5751 | | return false; |
| | | 5752 | | } |
| | | 5753 | | |
| | | 5754 | | nullableCheck: |
| | | 5755 | | if (leftIsNullable) |
| | | 5756 | | { |
| | | 5757 | | var leftNullableHasValueGetterMethod = left.Type.GetNullableHasValueGetterMethod(); // asking from t |
| | | 5758 | | |
| | | 5759 | | EmitLoadLocalVariableAddress(il, lVarIndex); |
| | | 5760 | | EmitMethodCall(il, leftNullableHasValueGetterMethod); |
| | | 5761 | | |
| | | 5762 | | var isLiftedToNull = exprType == typeof(bool?); |
| | | 5763 | | var leftHasValueVar = -1; |
| | | 5764 | | if (isLiftedToNull) |
| | | 5765 | | EmitStoreAndLoadLocalVariable(il, leftHasValueVar = il.GetNextLocalVarIndex(typeof(bool))); |
| | | 5766 | | |
| | | 5767 | | // ReSharper disable once AssignNullToNotNullAttribute |
| | | 5768 | | EmitLoadLocalVariableAddress(il, rVarIndex); |
| | | 5769 | | EmitMethodCall(il, leftNullableHasValueGetterMethod); |
| | | 5770 | | |
| | | 5771 | | var rightHasValueVar = -1; |
| | | 5772 | | if (isLiftedToNull) |
| | | 5773 | | EmitStoreAndLoadLocalVariable(il, rightHasValueVar = il.GetNextLocalVarIndex(typeof(bool))); |
| | | 5774 | | |
| | | 5775 | | switch (nodeType) |
| | | 5776 | | { |
| | | 5777 | | case ExpressionType.Equal: |
| | | 5778 | | il.Demit(OpCodes.Ceq); // compare both HasValue calls |
| | | 5779 | | il.Demit(OpCodes.And); // both results need to be true |
| | | 5780 | | break; |
| | | 5781 | | |
| | | 5782 | | case ExpressionType.NotEqual: |
| | | 5783 | | il.Demit(OpCodes.Ceq); |
| | | 5784 | | EmitEqualToZeroOrNull(il); |
| | | 5785 | | il.Demit(OpCodes.Or); |
| | | 5786 | | break; |
| | | 5787 | | |
| | | 5788 | | case ExpressionType.LessThan: |
| | | 5789 | | case ExpressionType.GreaterThan: |
| | | 5790 | | case ExpressionType.LessThanOrEqual: |
| | | 5791 | | case ExpressionType.GreaterThanOrEqual: |
| | | 5792 | | // left.HasValue `and` right.HasValue |
| | | 5793 | | il.Demit(OpCodes.And); |
| | | 5794 | | // `and` the prev result of comparison operation |
| | | 5795 | | il.Demit(OpCodes.And); |
| | | 5796 | | break; |
| | | 5797 | | |
| | | 5798 | | default: |
| | | 5799 | | return false; |
| | | 5800 | | } |
| | | 5801 | | |
| | | 5802 | | if (isLiftedToNull) |
| | | 5803 | | { |
| | | 5804 | | var resultLabel = il.DefineLabel(); |
| | | 5805 | | var isNullLabel = il.DefineLabel(); |
| | | 5806 | | EmitLoadLocalVariable(il, leftHasValueVar); |
| | | 5807 | | il.Demit(OpCodes.Brfalse, isNullLabel); |
| | | 5808 | | EmitLoadLocalVariable(il, rightHasValueVar); |
| | | 5809 | | il.Demit(OpCodes.Brtrue, resultLabel); |
| | | 5810 | | il.DmarkLabel(isNullLabel); |
| | | 5811 | | il.Demit(OpCodes.Pop); |
| | | 5812 | | il.Demit(OpCodes.Ldnull); |
| | | 5813 | | il.DmarkLabel(resultLabel); |
| | | 5814 | | } |
| | | 5815 | | } |
| | | 5816 | | |
| | | 5817 | | return il.EmitPopIfIgnoreResult(parent); |
| | | 5818 | | } |
| | | 5819 | | |
| | | 5820 | | private static bool TryEmitArithmetic(Expression left, Expression right, ExpressionType nodeType, Type exprT |
| | | 5821 | | #if LIGHT_EXPRESSION |
| | | 5822 | | IParameterProvider paramExprs, |
| | | 5823 | | #else |
| | | 5824 | | IReadOnlyList<PE> paramExprs, |
| | | 5825 | | #endif |
| | | 5826 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 5827 | | { |
| | | 5828 | | var flags = (parent |
| | | 5829 | | & ~(ParentFlags.IgnoreResult | ParentFlags.InstanceCall | |
| | | 5830 | | ParentFlags.LambdaCall | ParentFlags.ReturnByRef)) |
| | | 5831 | | | ParentFlags.Arithmetic; |
| | | 5832 | | |
| | | 5833 | | var noNullableValueLabel = default(Label); |
| | | 5834 | | var leftType = left.Type; |
| | | 5835 | | var leftIsNullable = leftType.IsNullable(); |
| | | 5836 | | var leftVar = -1; |
| | | 5837 | | var leftValueVar = -1; |
| | | 5838 | | if (leftIsNullable) |
| | | 5839 | | { |
| | | 5840 | | noNullableValueLabel = il.DefineLabel(); |
| | | 5841 | | if (!TryEmit(left, paramExprs, il, ref closure, setup, flags | ParentFlags.InstanceCall)) |
| | | 5842 | | return false; |
| | | 5843 | | |
| | | 5844 | | leftVar = EmitStoreAndLoadLocalVariableAddress(il, leftType); |
| | | 5845 | | EmitMethodCall(il, leftType.GetNullableHasValueGetterMethod()); |
| | | 5846 | | il.Demit(OpCodes.Brfalse, noNullableValueLabel); |
| | | 5847 | | |
| | | 5848 | | EmitLoadLocalVariableAddress(il, leftVar); |
| | | 5849 | | il.Demit(OpCodes.Ldfld, leftType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 5850 | | leftValueVar = EmitStoreLocalVariable(il, Nullable.GetUnderlyingType(leftType)); |
| | | 5851 | | } |
| | | 5852 | | else if (!TryEmit(left, paramExprs, il, ref closure, setup, flags)) |
| | | 5853 | | return false; |
| | | 5854 | | |
| | | 5855 | | var rightIsNullable = false; |
| | | 5856 | | if (right == null) // indicates the increment/decrement operation |
| | | 5857 | | { |
| | | 5858 | | EmitIncOrDec(il, nodeType == ExpressionType.Add); |
| | | 5859 | | } |
| | | 5860 | | else |
| | | 5861 | | { |
| | | 5862 | | // Stores the left value for later to restore it after the complex right emit, |
| | | 5863 | | // it prevents the problems in cases of right being a block, try-catch, etc. |
| | | 5864 | | // see `Using_try_finally_as_arithmetic_operand_use_void_block_in_finally` |
| | | 5865 | | var rightType = right.Type; |
| | | 5866 | | if (leftValueVar == -1 && right.IsComplexExpression()) |
| | | 5867 | | leftValueVar = EmitStoreLocalVariable(il, leftType); |
| | | 5868 | | |
| | | 5869 | | var rightVar = -1; |
| | | 5870 | | var rightValueVar = -1; |
| | | 5871 | | rightIsNullable = rightType.IsNullable(); |
| | | 5872 | | if (rightIsNullable) |
| | | 5873 | | { |
| | | 5874 | | if (!TryEmit(right, paramExprs, il, ref closure, setup, flags | ParentFlags.InstanceCall)) |
| | | 5875 | | return false; |
| | | 5876 | | |
| | | 5877 | | rightVar = EmitStoreAndLoadLocalVariableAddress(il, rightType); |
| | | 5878 | | |
| | | 5879 | | EmitMethodCall(il, rightType.GetNullableHasValueGetterMethod()); |
| | | 5880 | | il.Demit(OpCodes.Brfalse, noNullableValueLabel); |
| | | 5881 | | |
| | | 5882 | | EmitLoadLocalVariableAddress(il, rightVar); |
| | | 5883 | | il.Demit(OpCodes.Ldfld, rightType.GetNullableValueUnsafeAkaGetValueOrDefaultMethod()); |
| | | 5884 | | rightValueVar = EmitStoreLocalVariable(il, Nullable.GetUnderlyingType(rightType)); |
| | | 5885 | | } |
| | | 5886 | | else if (!TryEmit(right, paramExprs, il, ref closure, setup, flags)) |
| | | 5887 | | return false; |
| | | 5888 | | |
| | | 5889 | | // Means that it was complex right and the result of the left operation was stored |
| | | 5890 | | // and should be restored now, so the left and right go in order before the arithmetic operation |
| | | 5891 | | if (leftValueVar != -1) |
| | | 5892 | | { |
| | | 5893 | | if (rightValueVar == -1) |
| | | 5894 | | rightValueVar = EmitStoreLocalVariable(il, rightType); |
| | | 5895 | | EmitLoadLocalVariable(il, leftValueVar); |
| | | 5896 | | EmitLoadLocalVariable(il, rightValueVar); |
| | | 5897 | | } |
| | | 5898 | | |
| | | 5899 | | if (!TryEmitArithmeticOperation(leftType, rightType, nodeType, exprType, il)) |
| | | 5900 | | return false; |
| | | 5901 | | } |
| | | 5902 | | |
| | | 5903 | | if (leftIsNullable | rightIsNullable) |
| | | 5904 | | { |
| | | 5905 | | var valueLabel = il.DefineLabel(); |
| | | 5906 | | il.Demit(OpCodes.Br, valueLabel); |
| | | 5907 | | |
| | | 5908 | | il.DmarkLabel(noNullableValueLabel); |
| | | 5909 | | |
| | | 5910 | | if (exprType.IsNullable()) |
| | | 5911 | | { |
| | | 5912 | | EmitLoadLocalVariable(il, InitValueTypeVariable(il, exprType)); |
| | | 5913 | | var endLabel = il.DefineLabel(); |
| | | 5914 | | il.Demit(OpCodes.Br_S, endLabel); |
| | | 5915 | | il.DmarkLabel(valueLabel); |
| | | 5916 | | il.Demit(OpCodes.Newobj, exprType.GetNullableConstructor()); |
| | | 5917 | | il.DmarkLabel(endLabel); |
| | | 5918 | | } |
| | | 5919 | | else |
| | | 5920 | | { |
| | | 5921 | | il.Demit(OpCodes.Ldc_I4_0); |
| | | 5922 | | il.DmarkLabel(valueLabel); |
| | | 5923 | | } |
| | | 5924 | | } |
| | | 5925 | | |
| | | 5926 | | il.EmitPopIfIgnoreResult(parent); |
| | | 5927 | | return true; |
| | | 5928 | | } |
| | | 5929 | | |
| | | 5930 | | private static MethodInfo _stringStringConcatMethod, _stringObjectConcatMethod; |
| | | 5931 | | private static MethodInfo GetStringConcatMethod(Type paraType) |
| | | 5932 | | { |
| | | 5933 | | var methods = typeof(string).GetMethods(); |
| | | 5934 | | for (var i = 0; i < methods.Length; i++) |
| | | 5935 | | { |
| | | 5936 | | var m = methods[i]; |
| | | 5937 | | if (m.IsStatic && m.Name == "Concat" && |
| | | 5938 | | m.GetParameters().Length == 2 && m.GetParameters()[0].ParameterType == paraType) |
| | | 5939 | | return m; |
| | | 5940 | | } |
| | | 5941 | | return null; |
| | | 5942 | | } |
| | | 5943 | | |
| | | 5944 | | private static bool TryEmitArithmeticOperation(Type leftType, Type rightType, ExpressionType arithmeticNodeT |
| | | 5945 | | { |
| | | 5946 | | if (!exprType.IsPrimitive) |
| | | 5947 | | { |
| | | 5948 | | if (exprType.IsNullable()) |
| | | 5949 | | exprType = Nullable.GetUnderlyingType(exprType); |
| | | 5950 | | |
| | | 5951 | | if (!exprType.IsPrimitive) |
| | | 5952 | | { |
| | | 5953 | | var opMethodName = arithmeticNodeType.GetArithmeticBinaryOperatorMethodName(); |
| | | 5954 | | if (opMethodName == null) |
| | | 5955 | | return false; // todo: @feature should return specific error |
| | | 5956 | | |
| | | 5957 | | MethodInfo method = null; |
| | | 5958 | | if (exprType != typeof(string)) |
| | | 5959 | | { |
| | | 5960 | | // Note, that the result operation Type may be different from the operand Type, |
| | | 5961 | | // e.g. `TimeSpan op_Subtraction(DateTime, DateTime)`, that mean we should look |
| | | 5962 | | // for the specific method in the operand types, then in the result (expr) type. |
| | | 5963 | | method = FindBinaryOperandMethod(opMethodName, leftType, leftType, rightType, exprType); |
| | | 5964 | | if (method == null & leftType != rightType) |
| | | 5965 | | method = FindBinaryOperandMethod(opMethodName, rightType, leftType, rightType, exprType) |
| | | 5966 | | if (method == null & leftType != exprType & rightType != exprType) |
| | | 5967 | | method = FindBinaryOperandMethod(opMethodName, exprType, leftType, rightType, exprType); |
| | | 5968 | | // todo: @feature should return specific error |
| | | 5969 | | return method != null && EmitMethodCall(il, method); |
| | | 5970 | | } |
| | | 5971 | | |
| | | 5972 | | method = leftType != rightType | leftType != typeof(string) |
| | | 5973 | | ? _stringObjectConcatMethod ?? (_stringObjectConcatMethod = GetStringConcatMethod(typeof(obj |
| | | 5974 | | : _stringStringConcatMethod ?? (_stringStringConcatMethod = GetStringConcatMethod(typeof(str |
| | | 5975 | | |
| | | 5976 | | return method != null && EmitMethodCallOrVirtualCall(il, method); |
| | | 5977 | | } |
| | | 5978 | | } |
| | | 5979 | | |
| | | 5980 | | var opCode = arithmeticNodeType switch |
| | | 5981 | | { |
| | | 5982 | | ExpressionType.Add => OpCodes.Add, |
| | | 5983 | | ExpressionType.AddChecked => exprType.IsUnsigned() ? OpCodes.Add_Ovf_Un : OpCodes.Add_Ovf, |
| | | 5984 | | ExpressionType.Subtract => OpCodes.Sub, |
| | | 5985 | | ExpressionType.SubtractChecked => exprType.IsUnsigned() ? OpCodes.Sub_Ovf_Un : OpCodes.Sub_Ovf, |
| | | 5986 | | ExpressionType.Multiply => OpCodes.Mul, |
| | | 5987 | | ExpressionType.MultiplyChecked => exprType.IsUnsigned() ? OpCodes.Mul_Ovf_Un : OpCodes.Mul_Ovf, |
| | | 5988 | | ExpressionType.Divide => OpCodes.Div, |
| | | 5989 | | ExpressionType.Modulo => OpCodes.Rem, |
| | | 5990 | | ExpressionType.And => OpCodes.And, |
| | | 5991 | | ExpressionType.Or => OpCodes.Or, |
| | | 5992 | | ExpressionType.ExclusiveOr => OpCodes.Xor, |
| | | 5993 | | ExpressionType.LeftShift => OpCodes.Shl, |
| | | 5994 | | ExpressionType.RightShift => exprType.IsUnsigned() ? OpCodes.Shr_Un : OpCodes.Shr, |
| | | 5995 | | ExpressionType.Power => OpCodes.Call, |
| | | 5996 | | _ => throw new NotSupportedException("Unsupported arithmetic operation: " + arithmeticNodeType) |
| | | 5997 | | }; |
| | | 5998 | | |
| | | 5999 | | if (opCode.Equals(OpCodes.Call)) |
| | | 6000 | | il.Demit(OpCodes.Call, typeof(Math).FindMethod("Pow")); |
| | | 6001 | | else |
| | | 6002 | | il.Demit(opCode); |
| | | 6003 | | return true; |
| | | 6004 | | } |
| | | 6005 | | |
| | | 6006 | | private static bool TryEmitLogicalOperator(BinaryExpression expr, ExpressionType nodeType, |
| | | 6007 | | #if LIGHT_EXPRESSION |
| | | 6008 | | IParameterProvider paramExprs, |
| | | 6009 | | #else |
| | | 6010 | | IReadOnlyList<PE> paramExprs, |
| | | 6011 | | #endif |
| | | 6012 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 6013 | | { |
| | | 6014 | | if (!TryEmit(expr.Left, paramExprs, il, ref closure, setup, parent)) |
| | | 6015 | | return false; |
| | | 6016 | | |
| | | 6017 | | var labelSkipRight = il.DefineLabel(); |
| | | 6018 | | il.Demit(nodeType == ExpressionType.AndAlso ? OpCodes.Brfalse : OpCodes.Brtrue, labelSkipRight); |
| | | 6019 | | |
| | | 6020 | | if (!TryEmit(expr.Right, paramExprs, il, ref closure, setup, parent)) |
| | | 6021 | | return false; |
| | | 6022 | | |
| | | 6023 | | var labelDone = il.DefineLabel(); |
| | | 6024 | | il.Demit(OpCodes.Br, labelDone); |
| | | 6025 | | |
| | | 6026 | | il.DmarkLabel(labelSkipRight); // label the second branch |
| | | 6027 | | il.Demit(nodeType == ExpressionType.AndAlso ? OpCodes.Ldc_I4_0 : OpCodes.Ldc_I4_1); |
| | | 6028 | | il.DmarkLabel(labelDone); |
| | | 6029 | | |
| | | 6030 | | return true; |
| | | 6031 | | } |
| | | 6032 | | |
| | | 6033 | | private static bool IsNullContainingExpression(Expression expr) => |
| | | 6034 | | expr is DefaultExpression ld && (ld.Type.IsClass || ld.Type.IsNullable()) || |
| | | 6035 | | expr is ConstantExpression lc && lc.Value == null; |
| | | 6036 | | |
| | | 6037 | | private static bool TryEmitConditional( |
| | | 6038 | | Expression testExpr, Expression ifTrueExpr, Expression ifFalseExpr, |
| | | 6039 | | // Type type, // todo: @wip what about the type, what if it is a void? |
| | | 6040 | | #if LIGHT_EXPRESSION |
| | | 6041 | | IParameterProvider paramExprs, |
| | | 6042 | | #else |
| | | 6043 | | IReadOnlyList<PE> paramExprs, |
| | | 6044 | | #endif |
| | | 6045 | | ILGenerator il, ref ClosureInfo closure, CompilerFlags setup, ParentFlags parent) |
| | | 6046 | | { |
| | | 6047 | | testExpr = TryReduceCondition(testExpr); |
| | | 6048 | | var testNodeType = testExpr.NodeType; |
| | | 6049 | | |
| | | 6050 | | // Detect a simplistic case when we can use `Brtrue` or `Brfalse`. |
| | | 6051 | | // We are checking the negative result to go into the `IfFalse` branch, |
| | | 6052 | | // because for `IfTrue` we don't need to jump and just need to proceed emitting the `IfTrue` expression |
| | | 6053 | | // |
| | | 6054 | | // The cases: |
| | | 6055 | | // `x == true` => `Brfalse` |
| | | 6056 | | // `x != true` => `Brtrue` |
| | | 6057 | | // `x == false` => `Brtrue` |
| | | 6058 | | // `x != false` => `Brfalse` |
| | | 6059 | | // `x == null` => `Brtrue` |
| | | 6060 | | // `x != null` => `Brfalse` |
| | | 6061 | | // `x == 0` => `Brtrue` |
| | | 6062 | | // `x != 0` => `Brfalse` |
| | | 6063 | | |
| | | 6064 | | var useBrFalseOrTrue = -1; // 0 - is comparison with Zero (0, null, false), 1 - is comparison with (true |
| | | 6065 | | Type nullOfValueType = null; |
| | | 6066 | | if (testExpr is BinaryExpression tb && |
| | | 6067 | | (testNodeType == ExpressionType.Equal | testNodeType == ExpressionType.NotEqual)) |
| | | 6068 | | { |
| | | 6069 | | var testLeftExpr = tb.Left; |
| | | 6070 | | var testRightExpr = tb.Right; |
| | | 6071 | | |
| | | 6072 | | Expression oppositeTestExpr = null; |
| | | 6073 | | var sideConstExpr = testRightExpr as ConstantExpression ?? testLeftExpr as ConstantExpression; |
| | | 6074 | | if (sideConstExpr != null) |
| | | 6075 | | { |
| | | 6076 | | oppositeTestExpr = sideConstExpr == testLeftExpr ? testRightExpr : testLeftExpr; |
| | | 6077 | | var sideConstVal = sideConstExpr.Value; |
| | | 6078 | | if (sideConstVal == null) // todo: @perf we need to optimize for the Default as well |
| | | 6079 | | { |
| | | 6080 | | useBrFalseOrTrue = 0; |
| | | 6081 | | if (oppositeTestExpr.Type.IsNullable()) |
| | | 6082 | | nullOfValueType = oppositeTestExpr.Type; |
| | | 6083 | | } |
| | | 6084 | | else if (sideConstVal is bool boolConst) |
| | | 6085 | | useBrFalseOrTrue = boolConst ? 1 : 0; |
| | | 6086 | | else if (sideConstVal is int intConst && intConst == 0) |
| | | 6087 | | useBrFalseOrTrue = 0; // Brtrue does not work for `1`, you need to use Beq, or similar |
| | | 6088 | | else if (sideConstVal is byte bytConst && bytConst == 0) |
| | | 6089 | | useBrFalseOrTrue = 0; |
| | | 6090 | | } |
| | | 6091 | | else |
| | | 6092 | | { |
| | | 6093 | | var sideDefaultExpr = testRightExpr as DefaultExpression ?? testLeftExpr as DefaultExpression; |
| | | 6094 | | if (sideDefaultExpr != null) |
| | | 6095 | | { |
| | | 6096 | | oppositeTestExpr = sideDefaultExpr == testLeftExpr ? testRightExpr : testLeftExpr; |
| | | 6097 | | var testSideType = sideDefaultExpr.Type; |
| | | 6098 | | // except decimal, because its 0 is Decimal.Zero a struct and is not working with Brtrue/Brf |
| | | 6099 | | if (testSideType.IsPrimitiveWithZeroDefaultExceptDecimal()) |
| | | 6100 | | useBrFalseOrTrue = 0; |
| | | 6101 | | else if (testSideType.IsClass || testSideType.IsNullable()) |
| | | 6102 | | { |
| | | 6103 | | useBrFalseOrTrue = 0; |
| | | 6104 | | if (oppositeTestExpr.Type.IsNullable()) |
| | | 6105 | | nullOfValueType = oppositeTestExpr.Type; |
| | | 6106 | | } |
| | | 6107 | | } |
| | | 6108 | | } |
| | | 6109 | | |
| | | 6110 | | if (useBrFalseOrTrue != -1 && |
| | | 6111 | | !TryEmit(oppositeTestExpr, paramExprs, il, ref closure, setup, parent & ~ParentFlags.IgnoreResul |
| | | 6112 | | return false; |
| | | 6113 | | } |
| | | 6114 | | |
| | | 6115 | | if (useBrFalseOrTrue == -1 && |
| | | 6116 | | !TryEmit(testExpr, paramExprs, il, ref closure, setup, parent & ~ParentFlags.IgnoreResult)) |
| | | 6117 | | return false; |
| | | 6118 | | |
| | | 6119 | | if (nullOfValueType != null) |
| | | 6120 | | { |
| | | 6121 | | if (!closure.LastEmitIsAddress) |
| | | 6122 | | EmitStoreAndLoadLocalVariableAddress(il, nullOfValueType); |
| | | 6123 | | EmitMethodCall(il, nullOfValueType.GetNullableHasValueGetterMethod()); |
| | | 6124 | | } |
| | | 6125 | | |
| | | 6126 | | var labelIfFalse = il.DefineLabel(); |
| | | 6127 | | |
| | | 6128 | | // todo: @perf try to recognize the patterns like `b == 1` and replace Ceq, Brtrue with Beq, and respect |
| | | 6129 | | // for this we need to inline here the logic from the TryEmitComparison. |
| | | 6130 | | if ((testNodeType == ExpressionType.Equal & useBrFalseOrTrue == 0) || |
| | | 6131 | | (testNodeType == ExpressionType.NotEqual & useBrFalseOrTrue == 1)) |
| | | 6132 | | il.Demit(OpCodes.Brtrue, labelIfFalse); |
| | | 6133 | | else |
| | | 6134 | | il.Demit(OpCodes.Brfalse, labelIfFalse); |
| | | 6135 | | |
| | | 6136 | | if (!TryEmit(ifTrueExpr, paramExprs, il, ref closure, setup, parent)) |
| | | 6137 | | return false; |
| | | 6138 | | |
| | | 6139 | | if (ifFalseExpr.NodeType == ExpressionType.Default && ifFalseExpr.Type == typeof(void)) |
| | | 6140 | | il.DmarkLabel(labelIfFalse); |
| | | 6141 | | else |
| | | 6142 | | { |
| | | 6143 | | var labelDone = il.DefineLabel(); |
| | | 6144 | | il.Demit(OpCodes.Br, labelDone); |
| | | 6145 | | il.DmarkLabel(labelIfFalse); |
| | | 6146 | | if (!TryEmit(ifFalseExpr, paramExprs, il, ref closure, setup, parent)) |
| | | 6147 | | return false; |
| | | 6148 | | il.DmarkLabel(labelDone); |
| | | 6149 | | } |
| | | 6150 | | return true; |
| | | 6151 | | } |
| | | 6152 | | |
| | | 6153 | | private static Expression TryReduceCondition(Expression testExpr) |
| | | 6154 | | { |
| | | 6155 | | // removing Not by turning Equal -> NotEqual, NotEqual -> Equal |
| | | 6156 | | if (testExpr.NodeType == ExpressionType.Not) |
| | | 6157 | | { |
| | | 6158 | | // simplify the not `==` -> `!=`, `!=` -> `==` |
| | | 6159 | | var op = TryReduceCondition(((UnaryExpression)testExpr).Operand); |
| | | 6160 | | var nodeType = op.NodeType; |
| | | 6161 | | if (nodeType == ExpressionType.Equal) // ensures that it is a BinaryExpression |
| | | 6162 | | { |
| | | 6163 | | var binOp = (BinaryExpression)op; |
| | | 6164 | | return NotEqual(binOp.Left, binOp.Right); |
| | | 6165 | | } |
| | | 6166 | | else if (nodeType == ExpressionType.NotEqual) // ensures that it is a BinaryExpression |
| | | 6167 | | { |
| | | 6168 | | var binOp = (BinaryExpression)op; |
| | | 6169 | | return Equal(binOp.Left, binOp.Right); |
| | | 6170 | | } |
| | | 6171 | | } |
| | | 6172 | | else if (testExpr is BinaryExpression b) |
| | | 6173 | | { |
| | | 6174 | | var nodeType = b.NodeType; |
| | | 6175 | | if (nodeType == ExpressionType.OrElse | nodeType == ExpressionType.Or) |
| | | 6176 | | { |
| | | 6177 | | if (b.Left is ConstantExpression lc && lc.Value is bool lcb) |
| | | 6178 | | return lcb ? lc : TryReduceCondition(b.Right); |
| | | 6179 | | |
| | | 6180 | | if (b.Right is ConstantExpression rc && rc.Value is bool rcb && !rcb) |
| | | 6181 | | return TryReduceCondition(b.Left); |
| | | 6182 | | } |
| | | 6183 | | else if (nodeType == ExpressionType.AndAlso | nodeType == ExpressionType.And) |
| | | 6184 | | { |
| | | 6185 | | if (b.Left is ConstantExpression lc && lc.Value is bool lcb) |
| | | 6186 | | return !lcb ? lc : TryReduceCondition(b.Right); |
| | | 6187 | | |
| | | 6188 | | if (b.Right is ConstantExpression rc && rc.Value is bool rcb && rcb) |
| | | 6189 | | return TryReduceCondition(b.Left); |
| | | 6190 | | } |
| | | 6191 | | } |
| | | 6192 | | |
| | | 6193 | | return testExpr; |
| | | 6194 | | } |
| | | 6195 | | |
| | | 6196 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6197 | | public static void EmitEqualToZeroOrNull(ILGenerator il) |
| | | 6198 | | { |
| | | 6199 | | il.Demit(OpCodes.Ldc_I4_0); // OpCodes.Not does not work here because it is a bitwise operation |
| | | 6200 | | il.Demit(OpCodes.Ceq); |
| | | 6201 | | } |
| | | 6202 | | |
| | | 6203 | | /// Get the advantage of the optimized specialized EmitCall method |
| | | 6204 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6205 | | public static bool EmitMethodCallOrVirtualCall(ILGenerator il, MethodInfo method) |
| | | 6206 | | { |
| | | 6207 | | il.Demit(method.IsVirtual ? OpCodes.Callvirt : OpCodes.Call, method); |
| | | 6208 | | // todo: @feature EmitCall is specifically for the varags method and not for normal C# conventions metho |
| | | 6209 | | // for those you need to call Emit(OpCodes.Call|Callvirt, methodInfo). |
| | | 6210 | | // So for now the varargs methods are not supported yet. |
| | | 6211 | | return (method.CallingConvention & CallingConventions.VarArgs) == 0; |
| | | 6212 | | } |
| | | 6213 | | |
| | | 6214 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6215 | | public static bool EmitVirtualMethodCall(ILGenerator il, MethodInfo method) |
| | | 6216 | | { |
| | | 6217 | | il.Demit(OpCodes.Callvirt, method); |
| | | 6218 | | // todo: @feature EmitCall is specifically for the varags method and not for normal C# conventions metho |
| | | 6219 | | // for those you need to call Emit(OpCodes.Call|Callvirt, methodInfo). |
| | | 6220 | | // So for now the varargs methods are not supported yet. |
| | | 6221 | | return (method.CallingConvention & CallingConventions.VarArgs) == 0; |
| | | 6222 | | } |
| | | 6223 | | |
| | | 6224 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6225 | | public static bool EmitMethodCall(ILGenerator il, MethodInfo method) |
| | | 6226 | | { |
| | | 6227 | | il.Demit(OpCodes.Call, method); |
| | | 6228 | | // todo: @feature EmitCall is specifically for the varags method and not for normal C# conventions metho |
| | | 6229 | | // for those you need to call Emit(OpCodes.Call|Callvirt, methodInfo). |
| | | 6230 | | // So for now the varargs methods are not supported yet. |
| | | 6231 | | return (method.CallingConvention & CallingConventions.VarArgs) == 0; |
| | | 6232 | | } |
| | | 6233 | | |
| | | 6234 | | /// Same as EmitMethodCall which checks the method for null first, and returns false if it is null. |
| | | 6235 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6236 | | public static bool EmitMethodCallCheckForNull(ILGenerator il, MethodInfo method) => |
| | | 6237 | | method != null && EmitMethodCall(il, method); |
| | | 6238 | | |
| | | 6239 | | /// Same as EmitMethodCallOrVirtualCall which checks the method for null first, and returns false if it is n |
| | | 6240 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6241 | | public static bool EmitMethodCallOrVirtualCallCheckForNull(ILGenerator il, MethodInfo method) => |
| | | 6242 | | method != null && EmitMethodCallOrVirtualCall(il, method); |
| | | 6243 | | |
| | | 6244 | | /// Efficiently emit the int constant |
| | | 6245 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6246 | | public static void EmitLoadConstantInt(ILGenerator il, int i) |
| | | 6247 | | { |
| | | 6248 | | switch (i) |
| | | 6249 | | { |
| | | 6250 | | case -1: il.Demit(OpCodes.Ldc_I4_M1); break; |
| | | 6251 | | case 0: il.Demit(OpCodes.Ldc_I4_0); break; |
| | | 6252 | | case 1: il.Demit(OpCodes.Ldc_I4_1); break; |
| | | 6253 | | case 2: il.Demit(OpCodes.Ldc_I4_2); break; |
| | | 6254 | | case 3: il.Demit(OpCodes.Ldc_I4_3); break; |
| | | 6255 | | case 4: il.Demit(OpCodes.Ldc_I4_4); break; |
| | | 6256 | | case 5: il.Demit(OpCodes.Ldc_I4_5); break; |
| | | 6257 | | case 6: il.Demit(OpCodes.Ldc_I4_6); break; |
| | | 6258 | | case 7: il.Demit(OpCodes.Ldc_I4_7); break; |
| | | 6259 | | case 8: il.Demit(OpCodes.Ldc_I4_8); break; |
| | | 6260 | | default: |
| | | 6261 | | if (i > -129 && i < 128) |
| | | 6262 | | il.Demit(OpCodes.Ldc_I4_S, (sbyte)i); |
| | | 6263 | | else |
| | | 6264 | | il.Demit(OpCodes.Ldc_I4, i); |
| | | 6265 | | break; |
| | | 6266 | | } |
| | | 6267 | | } |
| | | 6268 | | |
| | | 6269 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6270 | | private static void EmitLoadLocalVariableAddress(ILGenerator il, int location) |
| | | 6271 | | { |
| | | 6272 | | if ((uint)location <= byte.MaxValue) |
| | | 6273 | | il.Demit(OpCodes.Ldloca_S, (byte)location); |
| | | 6274 | | else |
| | | 6275 | | il.Demit(OpCodes.Ldloca, (short)location); |
| | | 6276 | | } |
| | | 6277 | | |
| | | 6278 | | /// <summary>Load local variable on stack</summary> |
| | | 6279 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6280 | | public static bool EmitLoadLocalVariable(ILGenerator il, int location) |
| | | 6281 | | { |
| | | 6282 | | if (location == 0) |
| | | 6283 | | il.Demit(OpCodes.Ldloc_0); |
| | | 6284 | | else if (location == 1) |
| | | 6285 | | il.Demit(OpCodes.Ldloc_1); |
| | | 6286 | | else if (location == 2) |
| | | 6287 | | il.Demit(OpCodes.Ldloc_2); |
| | | 6288 | | else if (location == 3) |
| | | 6289 | | il.Demit(OpCodes.Ldloc_3); |
| | | 6290 | | else if ((uint)location <= byte.MaxValue) |
| | | 6291 | | il.Demit(OpCodes.Ldloc_S, (byte)location); |
| | | 6292 | | else |
| | | 6293 | | il.Demit(OpCodes.Ldloc, (short)location); |
| | | 6294 | | return true; |
| | | 6295 | | } |
| | | 6296 | | |
| | | 6297 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6298 | | private static bool EmitIncOrDec(ILGenerator il, bool isInc = false) |
| | | 6299 | | { |
| | | 6300 | | il.Demit(OpCodes.Ldc_I4_1); |
| | | 6301 | | il.Demit(isInc ? OpCodes.Add : OpCodes.Sub); |
| | | 6302 | | return true; |
| | | 6303 | | } |
| | | 6304 | | |
| | | 6305 | | /// <summary>Store the variable location on stack</summary> |
| | | 6306 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6307 | | public static void EmitStoreLocalVariable(ILGenerator il, int location) |
| | | 6308 | | { |
| | | 6309 | | if (location == 0) |
| | | 6310 | | il.Demit(OpCodes.Stloc_0); |
| | | 6311 | | else if (location == 1) |
| | | 6312 | | il.Demit(OpCodes.Stloc_1); |
| | | 6313 | | else if (location == 2) |
| | | 6314 | | il.Demit(OpCodes.Stloc_2); |
| | | 6315 | | else if (location == 3) |
| | | 6316 | | il.Demit(OpCodes.Stloc_3); |
| | | 6317 | | else if ((uint)location <= byte.MaxValue) |
| | | 6318 | | il.Demit(OpCodes.Stloc_S, (byte)location); |
| | | 6319 | | else |
| | | 6320 | | il.Demit(OpCodes.Stloc, (short)location); |
| | | 6321 | | } |
| | | 6322 | | |
| | | 6323 | | /// <summary>Get and store the variable of the type on stack</summary> |
| | | 6324 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6325 | | public static int EmitStoreLocalVariable(ILGenerator il, Type type) |
| | | 6326 | | { |
| | | 6327 | | var location = il.GetNextLocalVarIndex(type); |
| | | 6328 | | EmitStoreLocalVariable(il, location); |
| | | 6329 | | return location; |
| | | 6330 | | } |
| | | 6331 | | |
| | | 6332 | | /// <summary>Stores and loads the variable</summary> |
| | | 6333 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6334 | | public static void EmitStoreAndLoadLocalVariable(ILGenerator il, int location) |
| | | 6335 | | { |
| | | 6336 | | if (location == 0) |
| | | 6337 | | { |
| | | 6338 | | il.Demit(OpCodes.Stloc_0); |
| | | 6339 | | il.Demit(OpCodes.Ldloc_0); |
| | | 6340 | | } |
| | | 6341 | | else if (location == 1) |
| | | 6342 | | { |
| | | 6343 | | il.Demit(OpCodes.Stloc_1); |
| | | 6344 | | il.Demit(OpCodes.Ldloc_1); |
| | | 6345 | | } |
| | | 6346 | | else if (location == 2) |
| | | 6347 | | { |
| | | 6348 | | il.Demit(OpCodes.Stloc_2); |
| | | 6349 | | il.Demit(OpCodes.Ldloc_2); |
| | | 6350 | | } |
| | | 6351 | | else if (location == 3) |
| | | 6352 | | { |
| | | 6353 | | il.Demit(OpCodes.Stloc_3); |
| | | 6354 | | il.Demit(OpCodes.Ldloc_3); |
| | | 6355 | | } |
| | | 6356 | | else if ((uint)location <= byte.MaxValue) |
| | | 6357 | | { |
| | | 6358 | | il.Demit(OpCodes.Stloc_S, (byte)location); |
| | | 6359 | | il.Demit(OpCodes.Ldloc_S, (byte)location); |
| | | 6360 | | } |
| | | 6361 | | else |
| | | 6362 | | { |
| | | 6363 | | il.Demit(OpCodes.Stloc, (short)location); |
| | | 6364 | | il.Demit(OpCodes.Ldloc, (short)location); |
| | | 6365 | | } |
| | | 6366 | | } |
| | | 6367 | | |
| | | 6368 | | /// <summary>Stores and loads the variable, and returns it</summary> |
| | | 6369 | | public static int EmitStoreAndLoadLocalVariable(ILGenerator il, Type t) |
| | | 6370 | | { |
| | | 6371 | | var location = il.GetNextLocalVarIndex(t); |
| | | 6372 | | EmitStoreAndLoadLocalVariable(il, location); |
| | | 6373 | | return location; |
| | | 6374 | | } |
| | | 6375 | | |
| | | 6376 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6377 | | private static void EmitStoreAndLoadLocalVariableAddress(ILGenerator il, int location) |
| | | 6378 | | { |
| | | 6379 | | // #if DEBUG |
| | | 6380 | | // var ilLengthField = typeof(ILGenerator).GetField("m_length", BindingFlags.Instance | BindingFlags.Non |
| | | 6381 | | // var ilStreamField = typeof(ILGenerator).GetField("m_ILStream", BindingFlags.Instance | BindingFlags.N |
| | | 6382 | | // var ilLength = (int)ilLengthField.GetValue(il); |
| | | 6383 | | // var ilStream = (byte[])ilStreamField.GetValue(il); |
| | | 6384 | | |
| | | 6385 | | // var ilMaxMidStackField = typeof(ILGenerator).GetField("m_maxMidStack", BindingFlags.Instance | Bin |
| | | 6386 | | // var ilMaxMidStackCurField = typeof(ILGenerator).GetField("m_maxMidStackCur", BindingFlags.Instance | |
| | | 6387 | | // var ilMaxMidStack = (int)ilMaxMidStackField.GetValue(il); |
| | | 6388 | | // var ilMaxMidStackCur = (int)ilMaxMidStackCurField.GetValue(il); |
| | | 6389 | | // #endif |
| | | 6390 | | if (location == 0) |
| | | 6391 | | { |
| | | 6392 | | // todo: @perf |
| | | 6393 | | // the internal code for this is |
| | | 6394 | | // |
| | | 6395 | | // EnsureCapacity(3); |
| | | 6396 | | // InternalEmit(opcode); |
| | | 6397 | | // EnsureCapacity(4); |
| | | 6398 | | // InternalEmit(opcode); |
| | | 6399 | | // m_ILStream[m_length++] = (byte)arg; |
| | | 6400 | | // |
| | | 6401 | | // which translates to -> |
| | | 6402 | | // |
| | | 6403 | | // if (m_length + 7 >= m_ILStream.Length) |
| | | 6404 | | // IncreaseCapacity(7); |
| | | 6405 | | // // No stack change here cause 1st op decrease stack by 1 and second increase by 1 |
| | | 6406 | | // m_ILStream[m_length++] = (byte)OpCodes.Stloc_0.Value; |
| | | 6407 | | // m_ILStream[m_length++] = (byte)OpCodes.Ldloca_S.Value; |
| | | 6408 | | // m_ILStream[m_length++] = (byte)0; // we may no need it |
| | | 6409 | | // |
| | | 6410 | | il.Demit(OpCodes.Stloc_0); |
| | | 6411 | | il.Demit(OpCodes.Ldloca_S, (byte)0); |
| | | 6412 | | } |
| | | 6413 | | else if (location == 1) |
| | | 6414 | | { |
| | | 6415 | | // todo: @perf we may introduce the EmitOne, EmitBatchNonStackModified(OpCode store, OpCode load, by |
| | | 6416 | | // |
| | | 6417 | | // if (ilLength + 7 < ilStream.Length) |
| | | 6418 | | // { |
| | | 6419 | | // ilStream[ilLength++] = (byte)OpCodes.Stloc_1.Value; |
| | | 6420 | | // if (ilMaxMidStackCur + 1 > ilMaxMidStack) |
| | | 6421 | | // ilMaxMidStackField.SetValue(il, ilMaxMidStackCur + 1); |
| | | 6422 | | // ilStream[ilLength++] = (byte)OpCodes.Ldloca_S.Value; |
| | | 6423 | | // ilStream[ilLength++] = (byte)1; |
| | | 6424 | | // ilLengthField.SetValue(il, ilLength); |
| | | 6425 | | // } |
| | | 6426 | | // else |
| | | 6427 | | // { |
| | | 6428 | | il.Demit(OpCodes.Stloc_1); |
| | | 6429 | | il.Demit(OpCodes.Ldloca_S, (byte)1); |
| | | 6430 | | // } |
| | | 6431 | | } |
| | | 6432 | | else if (location == 2) |
| | | 6433 | | { |
| | | 6434 | | il.Demit(OpCodes.Stloc_2); |
| | | 6435 | | il.Demit(OpCodes.Ldloca_S, (byte)2); |
| | | 6436 | | } |
| | | 6437 | | else if (location == 3) |
| | | 6438 | | { |
| | | 6439 | | il.Demit(OpCodes.Stloc_3); |
| | | 6440 | | il.Demit(OpCodes.Ldloca_S, (byte)3); |
| | | 6441 | | } |
| | | 6442 | | else if ((uint)location <= byte.MaxValue) |
| | | 6443 | | { |
| | | 6444 | | il.Demit(OpCodes.Stloc_S, (byte)location); |
| | | 6445 | | il.Demit(OpCodes.Ldloca_S, (byte)location); |
| | | 6446 | | } |
| | | 6447 | | else |
| | | 6448 | | { |
| | | 6449 | | il.Demit(OpCodes.Stloc, (short)location); |
| | | 6450 | | il.Demit(OpCodes.Ldloca, (short)location); |
| | | 6451 | | } |
| | | 6452 | | } |
| | | 6453 | | |
| | | 6454 | | private static int EmitStoreAndLoadLocalVariableAddress(ILGenerator il, Type type) |
| | | 6455 | | { |
| | | 6456 | | var location = il.GetNextLocalVarIndex(type); |
| | | 6457 | | EmitStoreAndLoadLocalVariableAddress(il, location); |
| | | 6458 | | return location; |
| | | 6459 | | } |
| | | 6460 | | |
| | | 6461 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6462 | | private static void EmitLoadArg(ILGenerator il, int paramIndex) |
| | | 6463 | | { |
| | | 6464 | | if (paramIndex == 0) |
| | | 6465 | | il.Demit(OpCodes.Ldarg_0); |
| | | 6466 | | else if (paramIndex == 1) |
| | | 6467 | | il.Demit(OpCodes.Ldarg_1); |
| | | 6468 | | else if (paramIndex == 2) |
| | | 6469 | | il.Demit(OpCodes.Ldarg_2); |
| | | 6470 | | else if (paramIndex == 3) |
| | | 6471 | | il.Demit(OpCodes.Ldarg_3); |
| | | 6472 | | else if ((uint)paramIndex <= byte.MaxValue) |
| | | 6473 | | il.Demit(OpCodes.Ldarg_S, (byte)paramIndex); |
| | | 6474 | | else |
| | | 6475 | | il.Demit(OpCodes.Ldarg, (short)paramIndex); |
| | | 6476 | | } |
| | | 6477 | | |
| | | 6478 | | [MethodImpl((MethodImplOptions)256)] |
| | | 6479 | | private static void EmitLoadArgAddress(ILGenerator il, int paramIndex) |
| | | 6480 | | { |
| | | 6481 | | if ((uint)paramIndex <= byte.MaxValue) |
| | | 6482 | | il.Demit(OpCodes.Ldarga_S, (byte)paramIndex); |
| | | 6483 | | else |
| | | 6484 | | il.Demit(OpCodes.Ldarga, (short)paramIndex); |
| | | 6485 | | } |
| | | 6486 | | |
| | | 6487 | | /// <summary>Tries to interpret and emit the result IL |
| | | 6488 | | /// In case of exception return false, to allow FEC emit normally and throw in the invocation phase</summary |
| | | 6489 | | public static bool TryInterpretAndEmitResult(Expression expr, ILGenerator il, ParentFlags parent, CompilerFl |
| | | 6490 | | { |
| | | 6491 | | var type = expr.Type; |
| | | 6492 | | Debug.Assert(type.IsPrimitive); |
| | | 6493 | | if ((flags & CompilerFlags.DisableInterpreter) != 0) |
| | | 6494 | | return false; |
| | | 6495 | | |
| | | 6496 | | var typeCode = Type.GetTypeCode(type); |
| | | 6497 | | try |
| | | 6498 | | { |
| | | 6499 | | switch (typeCode) |
| | | 6500 | | { |
| | | 6501 | | case TypeCode.Boolean: |
| | | 6502 | | var resultBool = false; |
| | | 6503 | | if (!Interpreter.TryInterpretBool(ref resultBool, expr, expr.NodeType)) |
| | | 6504 | | return false; |
| | | 6505 | | il.Demit(resultBool ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0); |
| | | 6506 | | break; |
| | | 6507 | | |
| | | 6508 | | case TypeCode.Int32: |
| | | 6509 | | int resultInt = 0; |
| | | 6510 | | if (!Interpreter.TryInterpretInt(ref resultInt, expr, expr.NodeType)) |
| | | 6511 | | return false; |
| | | 6512 | | if ((parent & ParentFlags.IgnoreResult) == 0) |
| | | 6513 | | EmitLoadConstantInt(il, resultInt); |
| | | 6514 | | break; |
| | | 6515 | | case TypeCode.Decimal: |
| | | 6516 | | decimal resultDec = default; |
| | | 6517 | | if (!Interpreter.TryInterpretDecimal(ref resultDec, expr, expr.NodeType)) |
| | | 6518 | | return false; |
| | | 6519 | | if ((parent & ParentFlags.IgnoreResult) == 0) |
| | | 6520 | | EmitDecimalConstant(resultDec, il); |
| | | 6521 | | break; |
| | | 6522 | | default: |
| | | 6523 | | Interpreter.PValue resultVal = default; |
| | | 6524 | | if (!Interpreter.TryInterpretPrimitiveValue(ref resultVal, expr, typeCode, expr.NodeType)) |
| | | 6525 | | return false; |
| | | 6526 | | if ((parent & ParentFlags.IgnoreResult) == 0) |
| | | 6527 | | switch (typeCode) |
| | | 6528 | | { |
| | | 6529 | | case TypeCode.Char: |
| | | 6530 | | EmitLoadConstantInt(il, resultVal.CharValue); |
| | | 6531 | | break; |
| | | 6532 | | case TypeCode.SByte: |
| | | 6533 | | EmitLoadConstantInt(il, resultVal.SByteValue); |
| | | 6534 | | break; |
| | | 6535 | | case TypeCode.Byte: |
| | | 6536 | | EmitLoadConstantInt(il, resultVal.ByteValue); |
| | | 6537 | | break; |
| | | 6538 | | case TypeCode.Int16: |
| | | 6539 | | EmitLoadConstantInt(il, resultVal.Int16Value); |
| | | 6540 | | break; |
| | | 6541 | | case TypeCode.UInt16: |
| | | 6542 | | EmitLoadConstantInt(il, resultVal.UInt16Value); |
| | | 6543 | | break; |
| | | 6544 | | case TypeCode.Int32: |
| | | 6545 | | EmitLoadConstantInt(il, resultVal.Int32Value); |
| | | 6546 | | break; |
| | | 6547 | | case TypeCode.UInt32: |
| | | 6548 | | unchecked |
| | | 6549 | | { |
| | | 6550 | | EmitLoadConstantInt(il, (int)resultVal.UInt32Value); |
| | | 6551 | | } |
| | | 6552 | | break; |
| | | 6553 | | case TypeCode.Int64: |
| | | 6554 | | il.Demit(OpCodes.Ldc_I8, resultVal.Int64Value); |
| | | 6555 | | break; |
| | | 6556 | | case TypeCode.UInt64: |
| | | 6557 | | unchecked |
| | | 6558 | | { |
| | | 6559 | | il.Demit(OpCodes.Ldc_I8, (long)resultVal.UInt64Value); |
| | | 6560 | | } |
| | | 6561 | | break; |
| | | 6562 | | case TypeCode.Single: |
| | | 6563 | | il.Demit(OpCodes.Ldc_R4, resultVal.SingleValue); |
| | | 6564 | | break; |
| | | 6565 | | case TypeCode.Double: |
| | | 6566 | | il.Demit(OpCodes.Ldc_R8, resultVal.DoubleValue); |
| | | 6567 | | break; |
| | | 6568 | | default: Interpreter.UnreachableCase(typeCode); break; |
| | | 6569 | | } |
| | | 6570 | | break; |
| | | 6571 | | } |
| | | 6572 | | return true; |
| | | 6573 | | } |
| | | 6574 | | catch |
| | | 6575 | | { |
| | | 6576 | | // ignore exception and return the false and rethrow the exception in the invocation time |
| | | 6577 | | return false; |
| | | 6578 | | } |
| | | 6579 | | } |
| | | 6580 | | } |
| | | 6581 | | |
| | | 6582 | | /// <summary>Interpreter</summary> |
| | | 6583 | | internal static class Interpreter |
| | | 6584 | | { |
| | | 6585 | | /// <summary>Always returns true</summary> |
| | | 6586 | | public static readonly Func<bool> TrueFunc = static () => true; |
| | | 6587 | | /// <summary>Always returns false</summary> |
| | | 6588 | | public static readonly Func<bool> FalseFunc = static () => false; |
| | | 6589 | | |
| | | 6590 | | /// <summary>Return value should be ignored</summary> |
| | | 6591 | | [MethodImpl(MethodImplOptions.NoInlining)] |
| | | 6592 | | internal static void UnreachableCase<T>(T @case, |
| | | 6593 | | [CallerMemberName] string caller = "", [CallerLineNumber] int line = -1) |
| | | 6594 | | { |
| | | 6595 | | #if INTERPRETATION_DIAGNOSTICS |
| | | 6596 | | Console.WriteLine($"Unreachable switch case detected `{@case}` at `{caller}`:{line}"); |
| | | 6597 | | Debugger.Break(); |
| | | 6598 | | #endif |
| | | 6599 | | throw new InvalidCastException($"Unreachable switch case detected `{@case}` at `{caller}`:{line}"); |
| | | 6600 | | } |
| | | 6601 | | |
| | | 6602 | | /// <summary>Return value should be ignored</summary> |
| | | 6603 | | [MethodImpl(MethodImplOptions.NoInlining)] |
| | | 6604 | | private static R UnreachableCase<T, R>(T @case, R result, |
| | | 6605 | | [CallerMemberName] string caller = "", [CallerLineNumber] int line = -1) |
| | | 6606 | | { |
| | | 6607 | | #if INTERPRETATION_DIAGNOSTICS |
| | | 6608 | | Console.WriteLine($"Unreachable switch case detected `{@case}` at `{caller}`:{line}"); |
| | | 6609 | | Debugger.Break(); |
| | | 6610 | | #endif |
| | | 6611 | | throw new InvalidCastException($"Unreachable switch case detected `{@case}` at `{caller}`:{line}"); |
| | | 6612 | | } |
| | | 6613 | | |
| | | 6614 | | /// <summary>Operation accepting IComparable inputs and producing bool output</summary> |
| | | 6615 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | | 6616 | | public static bool IsComparison(ExpressionType nodeType) => |
| | | 6617 | | nodeType == ExpressionType.Equal | |
| | | 6618 | | nodeType == ExpressionType.NotEqual | |
| | | 6619 | | nodeType == ExpressionType.GreaterThan | |
| | | 6620 | | nodeType == ExpressionType.GreaterThanOrEqual | |
| | | 6621 | | nodeType == ExpressionType.LessThan | |
| | | 6622 | | nodeType == ExpressionType.LessThanOrEqual; |
| | | 6623 | | |
| | | 6624 | | /// <summary>Operation accepting the same primitive type inputs (or of the coalescing types) and producing t |
| | | 6625 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | | 6626 | | public static bool IsArithmeticBinary(ExpressionType nodeType) => |
| | | 6627 | | nodeType == ExpressionType.Add | |
| | | 6628 | | nodeType == ExpressionType.Subtract | |
| | | 6629 | | nodeType == ExpressionType.Multiply | |
| | | 6630 | | nodeType == ExpressionType.Divide | |
| | | 6631 | | nodeType == ExpressionType.Modulo | |
| | | 6632 | | nodeType == ExpressionType.Power | |
| | | 6633 | | nodeType == ExpressionType.LeftShift | |
| | | 6634 | | nodeType == ExpressionType.RightShift | |
| | | 6635 | | nodeType == ExpressionType.And | |
| | | 6636 | | nodeType == ExpressionType.Or | |
| | | 6637 | | nodeType == ExpressionType.ExclusiveOr; |
| | | 6638 | | |
| | | 6639 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | | 6640 | | internal static void NegatePrimitiveValue(ref PValue value, TypeCode code) |
| | | 6641 | | { |
| | | 6642 | | switch (code) |
| | | 6643 | | { |
| | | 6644 | | case TypeCode.Char: value.CharValue = (char)-value.CharValue; break; |
| | | 6645 | | case TypeCode.SByte: value.SByteValue = (sbyte)-value.SByteValue; break; |
| | | 6646 | | case TypeCode.Byte: value.Int16Value = (short)-value.ByteValue; break; |
| | | 6647 | | case TypeCode.Int16: value.Int16Value = (short)-value.Int16Value; break; |
| | | 6648 | | case TypeCode.UInt16: value.Int32Value = (int)-value.UInt16Value; break; |
| | | 6649 | | case TypeCode.Int32: value.Int32Value = -value.Int32Value; break; |
| | | 6650 | | // Negate can not be applied to the UInt32 |
| | | 6651 | | case TypeCode.UInt32: UnreachableCase(code); break; |
| | | 6652 | | case TypeCode.Single: value.SingleValue = -value.SingleValue; break; |
| | | 6653 | | case TypeCode.Double: value.DoubleValue = -value.DoubleValue; break; |
| | | 6654 | | default: UnreachableCase(code); break; |
| | | 6655 | | } |
| | | 6656 | | } |
| | | 6657 | | |
| | | 6658 | | internal static void ConvertPrimitiveValueFromTo(ref PValue value, TypeCode fromCode, TypeCode toCode) |
| | | 6659 | | { |
| | | 6660 | | switch (toCode) |
| | | 6661 | | { |
| | | 6662 | | case TypeCode.SByte: |
| | | 6663 | | switch (fromCode) |
| | | 6664 | | { |
| | | 6665 | | case TypeCode.Char: break; |
| | | 6666 | | case TypeCode.SByte: break; |
| | | 6667 | | case TypeCode.Byte: value.SByteValue = (sbyte)value.ByteValue; break; |
| | | 6668 | | case TypeCode.Int16: value.SByteValue = (sbyte)value.Int16Value; break; |
| | | 6669 | | case TypeCode.UInt16: value.SByteValue = (sbyte)value.UInt16Value; break; |
| | | 6670 | | case TypeCode.Int32: value.SByteValue = (sbyte)value.Int32Value; break; |
| | | 6671 | | case TypeCode.UInt32: value.SByteValue = (sbyte)value.UInt32Value; break; |
| | | 6672 | | case TypeCode.Int64: value.SByteValue = (sbyte)value.Int64Value; break; |
| | | 6673 | | case TypeCode.UInt64: value.SByteValue = (sbyte)value.UInt64Value; break; |
| | | 6674 | | case TypeCode.Single: value.SByteValue = (sbyte)value.SingleValue; break; |
| | | 6675 | | case TypeCode.Double: value.SByteValue = (sbyte)value.DoubleValue; break; |
| | | 6676 | | default: UnreachableCase(fromCode); break; |
| | | 6677 | | } |
| | | 6678 | | break; |
| | | 6679 | | case TypeCode.Byte: |
| | | 6680 | | switch (fromCode) |
| | | 6681 | | { |
| | | 6682 | | case TypeCode.Char: value.ByteValue = (byte)value.CharValue; break; |
| | | 6683 | | case TypeCode.SByte: value.ByteValue = (byte)value.SByteValue; break; |
| | | 6684 | | case TypeCode.Byte: break; |
| | | 6685 | | case TypeCode.Int16: value.ByteValue = (byte)value.Int16Value; break; |
| | | 6686 | | case TypeCode.UInt16: value.ByteValue = (byte)value.UInt16Value; break; |
| | | 6687 | | case TypeCode.Int32: value.ByteValue = (byte)value.Int32Value; break; |
| | | 6688 | | case TypeCode.UInt32: value.ByteValue = (byte)value.UInt32Value; break; |
| | | 6689 | | case TypeCode.Int64: value.ByteValue = (byte)value.Int64Value; break; |
| | | 6690 | | case TypeCode.UInt64: value.ByteValue = (byte)value.UInt64Value; break; |
| | | 6691 | | case TypeCode.Single: value.ByteValue = (byte)value.SingleValue; break; |
| | | 6692 | | case TypeCode.Double: value.ByteValue = (byte)value.DoubleValue; break; |
| | | 6693 | | default: UnreachableCase(fromCode); break; |
| | | 6694 | | } |
| | | 6695 | | break; |
| | | 6696 | | case TypeCode.Int16: |
| | | 6697 | | switch (fromCode) |
| | | 6698 | | { |
| | | 6699 | | case TypeCode.Char: value.Int16Value = (short)value.CharValue; break; |
| | | 6700 | | case TypeCode.SByte: value.Int16Value = (short)value.SByteValue; break; |
| | | 6701 | | case TypeCode.Byte: value.Int16Value = (short)value.ByteValue; break; |
| | | 6702 | | case TypeCode.Int16: break; |
| | | 6703 | | case TypeCode.UInt16: value.Int16Value = (short)value.UInt16Value; break; |
| | | 6704 | | case TypeCode.Int32: value.Int16Value = (short)value.Int32Value; break; |
| | | 6705 | | case TypeCode.UInt32: value.Int16Value = (short)value.UInt32Value; break; |
| | | 6706 | | case TypeCode.Int64: value.Int16Value = (short)value.Int64Value; break; |
| | | 6707 | | case TypeCode.UInt64: value.Int16Value = (short)value.UInt64Value; break; |
| | | 6708 | | case TypeCode.Single: value.Int16Value = (short)value.SingleValue; break; |
| | | 6709 | | case TypeCode.Double: value.Int16Value = (short)value.DoubleValue; break; |
| | | 6710 | | default: UnreachableCase(fromCode); break; |
| | | 6711 | | } |
| | | 6712 | | break; |
| | | 6713 | | case TypeCode.UInt16: |
| | | 6714 | | switch (fromCode) |
| | | 6715 | | { |
| | | 6716 | | case TypeCode.Char: value.UInt16Value = (ushort)value.CharValue; break; |
| | | 6717 | | case TypeCode.SByte: value.UInt16Value = (ushort)value.SByteValue; break; |
| | | 6718 | | case TypeCode.Byte: value.UInt16Value = (ushort)value.ByteValue; break; |
| | | 6719 | | case TypeCode.Int16: value.UInt16Value = (ushort)value.Int16Value; break; |
| | | 6720 | | case TypeCode.UInt16: break; |
| | | 6721 | | case TypeCode.Int32: value.UInt16Value = (ushort)value.Int32Value; break; |
| | | 6722 | | case TypeCode.UInt32: value.UInt16Value = (ushort)value.UInt32Value; break; |
| | | 6723 | | case TypeCode.Int64: value.UInt16Value = (ushort)value.Int64Value; break; |
| | | 6724 | | case TypeCode.UInt64: value.UInt16Value = (ushort)value.UInt64Value; break; |
| | | 6725 | | case TypeCode.Single: value.UInt16Value = (ushort)value.SingleValue; break; |
| | | 6726 | | case TypeCode.Double: value.UInt16Value = (ushort)value.DoubleValue; break; |
| | | 6727 | | default: UnreachableCase(fromCode); break; |
| | | 6728 | | } |
| | | 6729 | | break; |
| | | 6730 | | case TypeCode.Int32: |
| | | 6731 | | switch (fromCode) |
| | | 6732 | | { |
| | | 6733 | | case TypeCode.Char: value.Int32Value = (int)value.CharValue; break; |
| | | 6734 | | case TypeCode.SByte: value.Int32Value = (int)value.SByteValue; break; |
| | | 6735 | | case TypeCode.Byte: value.Int32Value = (int)value.ByteValue; break; |
| | | 6736 | | case TypeCode.Int16: value.Int32Value = (int)value.Int16Value; break; |
| | | 6737 | | case TypeCode.UInt16: value.Int32Value = (int)value.UInt16Value; break; |
| | | 6738 | | case TypeCode.Int32: break; |
| | | 6739 | | case TypeCode.UInt32: value.Int32Value = (int)value.UInt32Value; break; |
| | | 6740 | | case TypeCode.Int64: value.Int32Value = (int)value.Int64Value; break; |
| | | 6741 | | case TypeCode.UInt64: value.Int32Value = (int)value.UInt64Value; break; |
| | | 6742 | | case TypeCode.Single: value.Int32Value = (int)value.SingleValue; break; |
| | | 6743 | | case TypeCode.Double: value.Int32Value = (int)value.DoubleValue; break; |
| | | 6744 | | default: UnreachableCase(fromCode); break; |
| | | 6745 | | } |
| | | 6746 | | break; |
| | | 6747 | | case TypeCode.UInt32: |
| | | 6748 | | switch (fromCode) |
| | | 6749 | | { |
| | | 6750 | | case TypeCode.Char: value.UInt32Value = (uint)value.CharValue; break; |
| | | 6751 | | case TypeCode.SByte: value.UInt32Value = (uint)value.SByteValue; break; |
| | | 6752 | | case TypeCode.Byte: value.UInt32Value = (uint)value.ByteValue; break; |
| | | 6753 | | case TypeCode.Int16: value.UInt32Value = (uint)value.Int16Value; break; |
| | | 6754 | | case TypeCode.UInt16: value.UInt32Value = (uint)value.UInt16Value; break; |
| | | 6755 | | case TypeCode.Int32: value.UInt32Value = (uint)value.Int32Value; break; |
| | | 6756 | | case TypeCode.UInt32: break; |
| | | 6757 | | case TypeCode.Int64: value.UInt32Value = (uint)value.Int64Value; break; |
| | | 6758 | | case TypeCode.UInt64: value.UInt32Value = (uint)value.UInt64Value; break; |
| | | 6759 | | case TypeCode.Single: value.UInt32Value = (uint)value.SingleValue; break; |
| | | 6760 | | case TypeCode.Double: value.UInt32Value = (uint)value.DoubleValue; break; |
| | | 6761 | | default: UnreachableCase(fromCode); break; |
| | | 6762 | | } |
| | | 6763 | | break; |
| | | 6764 | | case TypeCode.Int64: |
| | | 6765 | | switch (fromCode) |
| | | 6766 | | { |
| | | 6767 | | case TypeCode.Char: value.Int64Value = (long)value.CharValue; break; |
| | | 6768 | | case TypeCode.SByte: value.Int64Value = (long)value.SByteValue; break; |
| | | 6769 | | case TypeCode.Byte: value.Int64Value = (long)value.ByteValue; break; |
| | | 6770 | | case TypeCode.Int16: value.Int64Value = (long)value.Int16Value; break; |
| | | 6771 | | case TypeCode.UInt16: value.Int64Value = (long)value.UInt16Value; break; |
| | | 6772 | | case TypeCode.Int32: value.Int64Value = (long)value.Int32Value; break; |
| | | 6773 | | case TypeCode.UInt32: value.Int64Value = (long)value.UInt32Value; break; |
| | | 6774 | | case TypeCode.Int64: break; |
| | | 6775 | | case TypeCode.UInt64: value.Int64Value = (long)value.UInt64Value; break; |
| | | 6776 | | case TypeCode.Single: value.Int64Value = (long)value.SingleValue; break; |
| | | 6777 | | case TypeCode.Double: value.Int64Value = (long)value.DoubleValue; break; |
| | | 6778 | | default: UnreachableCase(fromCode); break; |
| | | 6779 | | } |
| | | 6780 | | break; |
| | | 6781 | | case TypeCode.UInt64: |
| | | 6782 | | switch (fromCode) |
| | | 6783 | | { |
| | | 6784 | | case TypeCode.Char: value.UInt64Value = (ulong)value.CharValue; break; |
| | | 6785 | | case TypeCode.SByte: value.UInt64Value = (ulong)value.SByteValue; break; |
| | | 6786 | | case TypeCode.Byte: value.UInt64Value = (ulong)value.ByteValue; break; |
| | | 6787 | | case TypeCode.Int16: value.UInt64Value = (ulong)value.Int16Value; break; |
| | | 6788 | | case TypeCode.UInt16: value.UInt64Value = (ulong)value.UInt16Value; break; |
| | | 6789 | | case TypeCode.Int32: value.UInt64Value = (ulong)value.Int32Value; break; |
| | | 6790 | | case TypeCode.UInt32: value.UInt64Value = (ulong)value.UInt32Value; break; |
| | | 6791 | | case TypeCode.Int64: value.UInt64Value = (ulong)value.Int64Value; break; |
| | | 6792 | | case TypeCode.UInt64: break; |
| | | 6793 | | case TypeCode.Single: value.UInt64Value = (ulong)value.SingleValue; break; |
| | | 6794 | | case TypeCode.Double: value.UInt64Value = (ulong)value.DoubleValue; break; |
| | | 6795 | | default: UnreachableCase(fromCode); break; |
| | | 6796 | | } |
| | | 6797 | | break; |
| | | 6798 | | case TypeCode.Single: |
| | | 6799 | | switch (fromCode) |
| | | 6800 | | { |
| | | 6801 | | case TypeCode.Char: value.SingleValue = (float)value.CharValue; break; |
| | | 6802 | | case TypeCode.SByte: value.SingleValue = (float)value.SByteValue; break; |
| | | 6803 | | case TypeCode.Byte: value.SingleValue = (float)value.ByteValue; break; |
| | | 6804 | | case TypeCode.Int16: value.SingleValue = (float)value.Int16Value; break; |
| | | 6805 | | case TypeCode.UInt16: value.SingleValue = (float)value.UInt16Value; break; |
| | | 6806 | | case TypeCode.Int32: value.SingleValue = (float)value.Int32Value; break; |
| | | 6807 | | case TypeCode.UInt32: value.SingleValue = (float)value.UInt32Value; break; |
| | | 6808 | | case TypeCode.Int64: value.SingleValue = (float)value.Int64Value; break; |
| | | 6809 | | case TypeCode.UInt64: value.SingleValue = (float)value.UInt64Value; break; |
| | | 6810 | | case TypeCode.Single: break; |
| | | 6811 | | case TypeCode.Double: value.SingleValue = (float)value.DoubleValue; break; |
| | | 6812 | | default: UnreachableCase(fromCode); break; |
| | | 6813 | | } |
| | | 6814 | | break; |
| | | 6815 | | case TypeCode.Double: |
| | | 6816 | | switch (fromCode) |
| | | 6817 | | { |
| | | 6818 | | case TypeCode.Char: value.DoubleValue = (double)value.CharValue; break; |
| | | 6819 | | case TypeCode.SByte: value.DoubleValue = (double)value.SByteValue; break; |
| | | 6820 | | case TypeCode.Byte: value.DoubleValue = (double)value.ByteValue; break; |
| | | 6821 | | case TypeCode.Int16: value.DoubleValue = (double)value.Int16Value; break; |
| | | 6822 | | case TypeCode.UInt16: value.DoubleValue = (double)value.UInt16Value; break; |
| | | 6823 | | case TypeCode.Int32: value.DoubleValue = (double)value.Int32Value; break; |
| | | 6824 | | case TypeCode.UInt32: value.DoubleValue = (double)value.UInt32Value; break; |
| | | 6825 | | case TypeCode.Int64: value.DoubleValue = (double)value.Int64Value; break; |
| | | 6826 | | case TypeCode.UInt64: value.DoubleValue = (double)value.UInt64Value; break; |
| | | 6827 | | case TypeCode.Single: value.DoubleValue = (double)value.SingleValue; break; |
| | | 6828 | | case TypeCode.Double: break; |
| | | 6829 | | default: UnreachableCase(fromCode); break; |
| | | 6830 | | } |
| | | 6831 | | break; |
| | | 6832 | | } |
| | | 6833 | | } |
| | | 6834 | | |
| | | 6835 | | [DebuggerDisplay("{Code}")] |
| | | 6836 | | [StructLayout(LayoutKind.Explicit)] |
| | | 6837 | | internal struct PValue |
| | | 6838 | | { |
| | | 6839 | | [FieldOffset(0)] |
| | | 6840 | | public char CharValue; |
| | | 6841 | | [FieldOffset(0)] |
| | | 6842 | | public sbyte SByteValue; |
| | | 6843 | | [FieldOffset(0)] |
| | | 6844 | | public byte ByteValue; |
| | | 6845 | | [FieldOffset(0)] |
| | | 6846 | | public short Int16Value; |
| | | 6847 | | [FieldOffset(0)] |
| | | 6848 | | public ushort UInt16Value; |
| | | 6849 | | [FieldOffset(0)] |
| | | 6850 | | public int Int32Value; |
| | | 6851 | | [FieldOffset(0)] |
| | | 6852 | | public uint UInt32Value; |
| | | 6853 | | [FieldOffset(0)] |
| | | 6854 | | public long Int64Value; |
| | | 6855 | | [FieldOffset(0)] |
| | | 6856 | | public ulong UInt64Value; |
| | | 6857 | | [FieldOffset(0)] |
| | | 6858 | | public float SingleValue; |
| | | 6859 | | [FieldOffset(0)] |
| | | 6860 | | public double DoubleValue; |
| | | 6861 | | public PValue(char value) => CharValue = value; |
| | | 6862 | | public PValue(sbyte value) => SByteValue = value; |
| | | 6863 | | public PValue(byte value) => ByteValue = value; |
| | | 6864 | | public PValue(short value) => Int16Value = value; |
| | | 6865 | | public PValue(ushort value) => UInt16Value = value; |
| | | 6866 | | public PValue(int value) => Int32Value = value; |
| | | 6867 | | public PValue(uint value) => UInt32Value = value; |
| | | 6868 | | public PValue(long value) => Int64Value = value; |
| | | 6869 | | public PValue(ulong value) => UInt64Value = value; |
| | | 6870 | | public PValue(float value) => SingleValue = value; |
| | | 6871 | | public PValue(double value) => DoubleValue = value; |
| | | 6872 | | } |
| | | 6873 | | |
| | | 6874 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | | 6875 | | internal static bool TryUnboxToPrimitiveValue(ref PValue value, object boxedValue, TypeCode code) |
| | | 6876 | | { |
| | | 6877 | | switch (code) |
| | | 6878 | | { |
| | | 6879 | | case TypeCode.Char: value.CharValue = (char)boxedValue; break; |
| | | 6880 | | case TypeCode.SByte: value.SByteValue = (sbyte)boxedValue; break; |
| | | 6881 | | case TypeCode.Byte: value.ByteValue = (byte)boxedValue; break; |
| | | 6882 | | case TypeCode.Int16: value.Int16Value = (short)boxedValue; break; |
| | | 6883 | | case TypeCode.UInt16: value.UInt16Value = (ushort)boxedValue; break; |
| | | 6884 | | case TypeCode.Int32: value.Int32Value = (int)boxedValue; break; |
| | | 6885 | | case TypeCode.UInt32: value.UInt32Value = (uint)boxedValue; break; |
| | | 6886 | | case TypeCode.Int64: value.Int64Value = (long)boxedValue; break; |
| | | 6887 | | case TypeCode.UInt64: value.UInt64Value = (ulong)boxedValue; break; |
| | | 6888 | | case TypeCode.Single: value.SingleValue = (float)boxedValue; break; |
| | | 6889 | | case TypeCode.Double: value.DoubleValue = (double)boxedValue; break; |
| | | 6890 | | default: return false; |
| | | 6891 | | } |
| | | 6892 | | return true; |
| | | 6893 | | } |
| | | 6894 | | |
| | | 6895 | | // todo: @perf think how to avoid this boxing thing altogether, maybe do not expose it at all to force clien |
| | | 6896 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | | 6897 | | internal static object BoxPrimitiveValue(ref PValue value, TypeCode code) => code switch |
| | | 6898 | | { |
| | | 6899 | | TypeCode.Char => value.CharValue, |
| | | 6900 | | TypeCode.SByte => value.SByteValue, |
| | | 6901 | | TypeCode.Byte => value.ByteValue, |
| | | 6902 | | TypeCode.Int16 => value.Int16Value, |
| | | 6903 | | TypeCode.UInt16 => value.UInt16Value, |
| | | 6904 | | TypeCode.Int32 => value.Int32Value, |
| | | 6905 | | TypeCode.UInt32 => value.UInt32Value, |
| | | 6906 | | TypeCode.Int64 => value.Int64Value, |
| | | 6907 | | TypeCode.UInt64 => value.UInt64Value, |
| | | 6908 | | TypeCode.Single => value.SingleValue, |
| | | 6909 | | TypeCode.Double => value.DoubleValue, |
| | | 6910 | | _ => UnreachableCase(code, (object)null) |
| | | 6911 | | }; |
| | | 6912 | | |
| | | 6913 | | internal static bool ComparePrimitiveValues(ref PValue left, ref PValue right, TypeCode code, ExpressionType |
| | | 6914 | | { |
| | | 6915 | | switch (nodeType) |
| | | 6916 | | { |
| | | 6917 | | case ExpressionType.GreaterThan: |
| | | 6918 | | return code switch |
| | | 6919 | | { |
| | | 6920 | | TypeCode.Char => left.CharValue > right.CharValue, |
| | | 6921 | | TypeCode.SByte => left.SByteValue > right.SByteValue, |
| | | 6922 | | TypeCode.Byte => left.ByteValue > right.ByteValue, |
| | | 6923 | | TypeCode.Int16 => left.Int16Value > right.Int16Value, |
| | | 6924 | | TypeCode.UInt16 => left.UInt16Value > right.UInt16Value, |
| | | 6925 | | TypeCode.Int32 => left.Int32Value > right.Int32Value, |
| | | 6926 | | TypeCode.UInt32 => left.UInt32Value > right.UInt32Value, |
| | | 6927 | | TypeCode.Int64 => left.Int64Value > right.Int64Value, |
| | | 6928 | | TypeCode.UInt64 => left.UInt64Value > right.UInt64Value, |
| | | 6929 | | TypeCode.Single => left.SingleValue > right.SingleValue, |
| | | 6930 | | TypeCode.Double => left.DoubleValue > right.DoubleValue, |
| | | 6931 | | _ => UnreachableCase(code, false) |
| | | 6932 | | }; |
| | | 6933 | | case ExpressionType.GreaterThanOrEqual: |
| | | 6934 | | return code switch |
| | | 6935 | | { |
| | | 6936 | | TypeCode.Char => left.CharValue >= right.CharValue, |
| | | 6937 | | TypeCode.SByte => left.SByteValue >= right.SByteValue, |
| | | 6938 | | TypeCode.Byte => left.ByteValue >= right.ByteValue, |
| | | 6939 | | TypeCode.Int16 => left.Int16Value >= right.Int16Value, |
| | | 6940 | | TypeCode.UInt16 => left.UInt16Value >= right.UInt16Value, |
| | | 6941 | | TypeCode.Int32 => left.Int32Value >= right.Int32Value, |
| | | 6942 | | TypeCode.UInt32 => left.UInt32Value >= right.UInt32Value, |
| | | 6943 | | TypeCode.Int64 => left.Int64Value >= right.Int64Value, |
| | | 6944 | | TypeCode.UInt64 => left.UInt64Value >= right.UInt64Value, |
| | | 6945 | | TypeCode.Single => left.SingleValue >= right.SingleValue, |
| | | 6946 | | TypeCode.Double => left.DoubleValue >= right.DoubleValue, |
| | | 6947 | | _ => UnreachableCase(code, false) |
| | | 6948 | | }; |
| | | 6949 | | case ExpressionType.LessThan: |
| | | 6950 | | return code switch |
| | | 6951 | | { |
| | | 6952 | | TypeCode.Char => left.CharValue < right.CharValue, |
| | | 6953 | | TypeCode.SByte => left.SByteValue < right.SByteValue, |
| | | 6954 | | TypeCode.Byte => left.ByteValue < right.ByteValue, |
| | | 6955 | | TypeCode.Int16 => left.Int16Value < right.Int16Value, |
| | | 6956 | | TypeCode.UInt16 => left.UInt16Value < right.UInt16Value, |
| | | 6957 | | TypeCode.Int32 => left.Int32Value < right.Int32Value, |
| | | 6958 | | TypeCode.UInt32 => left.UInt32Value < right.UInt32Value, |
| | | 6959 | | TypeCode.Int64 => left.Int64Value < right.Int64Value, |
| | | 6960 | | TypeCode.UInt64 => left.UInt64Value < right.UInt64Value, |
| | | 6961 | | TypeCode.Single => left.SingleValue < right.SingleValue, |
| | | 6962 | | TypeCode.Double => left.DoubleValue < right.DoubleValue, |
| | | 6963 | | _ => UnreachableCase(code, false) |
| | | 6964 | | }; |
| | | 6965 | | case ExpressionType.LessThanOrEqual: |
| | | 6966 | | return code switch |
| | | 6967 | | { |
| | | 6968 | | TypeCode.Char => left.CharValue <= right.CharValue, |
| | | 6969 | | TypeCode.SByte => left.SByteValue <= right.SByteValue, |
| | | 6970 | | TypeCode.Byte => left.ByteValue <= right.ByteValue, |
| | | 6971 | | TypeCode.Int16 => left.Int16Value <= right.Int16Value, |
| | | 6972 | | TypeCode.UInt16 => left.UInt16Value <= right.UInt16Value, |
| | | 6973 | | TypeCode.Int32 => left.Int32Value <= right.Int32Value, |
| | | 6974 | | TypeCode.UInt32 => left.UInt32Value <= right.UInt32Value, |
| | | 6975 | | TypeCode.Int64 => left.Int64Value <= right.Int64Value, |
| | | 6976 | | TypeCode.UInt64 => left.UInt64Value <= right.UInt64Value, |
| | | 6977 | | TypeCode.Single => left.SingleValue <= right.SingleValue, |
| | | 6978 | | TypeCode.Double => left.DoubleValue <= right.DoubleValue, |
| | | 6979 | | _ => UnreachableCase(code, false) |
| | | 6980 | | }; |
| | | 6981 | | default: return UnreachableCase(nodeType, false); |
| | | 6982 | | } |
| | | 6983 | | } |
| | | 6984 | | |
| | | 6985 | | /// <summary>Puts the result to the `left` para meter</summary> |
| | | 6986 | | internal static void DoArithmeticForPrimitiveValues(ref PValue left, ref PValue right, TypeCode code, Expres |
| | | 6987 | | { |
| | | 6988 | | switch (nodeType) |
| | | 6989 | | { |
| | | 6990 | | case ExpressionType.Add: |
| | | 6991 | | switch (code) |
| | | 6992 | | { |
| | | 6993 | | case TypeCode.Char: left.CharValue += right.CharValue; break; |
| | | 6994 | | // System Expression does not define the Add for sbyte and byte, but let's keep it here beca |
| | | 6995 | | case TypeCode.SByte: left.SByteValue += right.SByteValue; break; |
| | | 6996 | | case TypeCode.Byte: left.ByteValue += right.ByteValue; break; |
| | | 6997 | | // the rest |
| | | 6998 | | case TypeCode.Int16: left.Int16Value += right.Int16Value; break; |
| | | 6999 | | case TypeCode.UInt16: left.UInt16Value += right.UInt16Value; break; |
| | | 7000 | | case TypeCode.Int32: left.Int32Value += right.Int32Value; break; |
| | | 7001 | | case TypeCode.UInt32: left.UInt32Value += right.UInt32Value; break; |
| | | 7002 | | case TypeCode.Int64: left.Int64Value += right.Int64Value; break; |
| | | 7003 | | case TypeCode.UInt64: left.UInt64Value += right.UInt64Value; break; |
| | | 7004 | | case TypeCode.Single: left.SingleValue += right.SingleValue; break; |
| | | 7005 | | case TypeCode.Double: left.DoubleValue += right.DoubleValue; break; |
| | | 7006 | | default: UnreachableCase(code); break; |
| | | 7007 | | } |
| | | 7008 | | break; |
| | | 7009 | | case ExpressionType.Subtract: |
| | | 7010 | | switch (code) |
| | | 7011 | | { |
| | | 7012 | | case TypeCode.Char: left.CharValue -= right.CharValue; break; |
| | | 7013 | | case TypeCode.SByte: left.SByteValue -= right.SByteValue; break; |
| | | 7014 | | case TypeCode.Byte: left.ByteValue -= right.ByteValue; break; |
| | | 7015 | | case TypeCode.Int16: left.Int16Value -= right.Int16Value; break; |
| | | 7016 | | case TypeCode.UInt16: left.UInt16Value -= right.UInt16Value; break; |
| | | 7017 | | case TypeCode.Int32: left.Int32Value -= right.Int32Value; break; |
| | | 7018 | | case TypeCode.UInt32: left.UInt32Value -= right.UInt32Value; break; |
| | | 7019 | | case TypeCode.Int64: left.Int64Value -= right.Int64Value; break; |
| | | 7020 | | case TypeCode.UInt64: left.UInt64Value -= right.UInt64Value; break; |
| | | 7021 | | case TypeCode.Single: left.SingleValue -= right.SingleValue; break; |
| | | 7022 | | case TypeCode.Double: left.DoubleValue -= right.DoubleValue; break; |
| | | 7023 | | default: UnreachableCase(code); break; |
| | | 7024 | | } |
| | | 7025 | | break; |
| | | 7026 | | case ExpressionType.Multiply: |
| | | 7027 | | switch (code) |
| | | 7028 | | { |
| | | 7029 | | case TypeCode.Char: left.CharValue *= right.CharValue; break; |
| | | 7030 | | case TypeCode.SByte: left.SByteValue *= right.SByteValue; break; |
| | | 7031 | | case TypeCode.Byte: left.ByteValue *= right.ByteValue; break; |
| | | 7032 | | case TypeCode.Int16: left.Int16Value *= right.Int16Value; break; |
| | | 7033 | | case TypeCode.UInt16: left.UInt16Value *= right.UInt16Value; break; |
| | | 7034 | | case TypeCode.Int32: left.Int32Value *= right.Int32Value; break; |
| | | 7035 | | case TypeCode.UInt32: left.UInt32Value *= right.UInt32Value; break; |
| | | 7036 | | case TypeCode.Int64: left.Int64Value *= right.Int64Value; break; |
| | | 7037 | | case TypeCode.UInt64: left.UInt64Value *= right.UInt64Value; break; |
| | | 7038 | | case TypeCode.Single: left.SingleValue *= right.SingleValue; break; |
| | | 7039 | | case TypeCode.Double: left.DoubleValue *= right.DoubleValue; break; |
| | | 7040 | | default: UnreachableCase(code); break; |
| | | 7041 | | } |
| | | 7042 | | break; |
| | | 7043 | | case ExpressionType.Divide: |
| | | 7044 | | switch (code) |
| | | 7045 | | { |
| | | 7046 | | case TypeCode.Char: left.CharValue /= right.CharValue; break; |
| | | 7047 | | case TypeCode.SByte: left.SByteValue /= right.SByteValue; break; |
| | | 7048 | | case TypeCode.Byte: left.ByteValue /= right.ByteValue; break; |
| | | 7049 | | case TypeCode.Int16: left.Int16Value /= right.Int16Value; break; |
| | | 7050 | | case TypeCode.UInt16: left.UInt16Value /= right.UInt16Value; break; |
| | | 7051 | | case TypeCode.Int32: left.Int32Value /= right.Int32Value; break; |
| | | 7052 | | case TypeCode.UInt32: left.UInt32Value /= right.UInt32Value; break; |
| | | 7053 | | case TypeCode.Int64: left.Int64Value /= right.Int64Value; break; |
| | | 7054 | | case TypeCode.UInt64: left.UInt64Value /= right.UInt64Value; break; |
| | | 7055 | | case TypeCode.Single: left.SingleValue /= right.SingleValue; break; |
| | | 7056 | | case TypeCode.Double: left.DoubleValue /= right.DoubleValue; break; |
| | | 7057 | | default: UnreachableCase(code); break; |
| | | 7058 | | } |
| | | 7059 | | break; |
| | | 7060 | | case ExpressionType.Modulo: |
| | | 7061 | | switch (code) |
| | | 7062 | | { |
| | | 7063 | | case TypeCode.Char: left.CharValue %= right.CharValue; break; |
| | | 7064 | | case TypeCode.SByte: left.SByteValue %= right.SByteValue; break; |
| | | 7065 | | case TypeCode.Byte: left.ByteValue %= right.ByteValue; break; |
| | | 7066 | | case TypeCode.Int16: left.Int16Value %= right.Int16Value; break; |
| | | 7067 | | case TypeCode.UInt16: left.UInt16Value %= right.UInt16Value; break; |
| | | 7068 | | case TypeCode.Int32: left.Int32Value %= right.Int32Value; break; |
| | | 7069 | | case TypeCode.UInt32: left.UInt32Value %= right.UInt32Value; break; |
| | | 7070 | | case TypeCode.Int64: left.Int64Value %= right.Int64Value; break; |
| | | 7071 | | case TypeCode.UInt64: left.UInt64Value %= right.UInt64Value; break; |
| | | 7072 | | case TypeCode.Single: left.SingleValue %= right.SingleValue; break; |
| | | 7073 | | case TypeCode.Double: left.DoubleValue %= right.DoubleValue; break; |
| | | 7074 | | default: UnreachableCase(code); break; |
| | | 7075 | | } |
| | | 7076 | | break; |
| | | 7077 | | case ExpressionType.And: |
| | | 7078 | | switch (code) |
| | | 7079 | | { |
| | | 7080 | | case TypeCode.Char: left.CharValue &= right.CharValue; break; |
| | | 7081 | | case TypeCode.SByte: left.SByteValue &= right.SByteValue; break; |
| | | 7082 | | case TypeCode.Byte: left.ByteValue &= right.ByteValue; break; |
| | | 7083 | | case TypeCode.Int16: left.Int16Value &= right.Int16Value; break; |
| | | 7084 | | case TypeCode.UInt16: left.UInt16Value &= right.UInt16Value; break; |
| | | 7085 | | case TypeCode.Int32: left.Int32Value &= right.Int32Value; break; |
| | | 7086 | | case TypeCode.UInt32: left.UInt32Value &= right.UInt32Value; break; |
| | | 7087 | | case TypeCode.Int64: left.Int64Value &= right.Int64Value; break; |
| | | 7088 | | case TypeCode.UInt64: left.UInt64Value &= right.UInt64Value; break; |
| | | 7089 | | default: UnreachableCase(code); break; |
| | | 7090 | | } |
| | | 7091 | | break; |
| | | 7092 | | case ExpressionType.Or: |
| | | 7093 | | switch (code) |
| | | 7094 | | { |
| | | 7095 | | case TypeCode.Char: left.CharValue |= right.CharValue; break; |
| | | 7096 | | case TypeCode.SByte: left.SByteValue |= right.SByteValue; break; |
| | | 7097 | | case TypeCode.Byte: left.ByteValue |= right.ByteValue; break; |
| | | 7098 | | case TypeCode.Int16: left.Int16Value |= right.Int16Value; break; |
| | | 7099 | | case TypeCode.UInt16: left.UInt16Value |= right.UInt16Value; break; |
| | | 7100 | | case TypeCode.Int32: left.Int32Value |= right.Int32Value; break; |
| | | 7101 | | case TypeCode.UInt32: left.UInt32Value |= right.UInt32Value; break; |
| | | 7102 | | case TypeCode.Int64: left.Int64Value |= right.Int64Value; break; |
| | | 7103 | | case TypeCode.UInt64: left.UInt64Value |= right.UInt64Value; break; |
| | | 7104 | | default: UnreachableCase(code); break; |
| | | 7105 | | } |
| | | 7106 | | break; |
| | | 7107 | | case ExpressionType.ExclusiveOr: |
| | | 7108 | | switch (code) |
| | | 7109 | | { |
| | | 7110 | | case TypeCode.Char: left.CharValue ^= right.CharValue; break; |
| | | 7111 | | case TypeCode.SByte: left.SByteValue ^= right.SByteValue; break; |
| | | 7112 | | case TypeCode.Byte: left.ByteValue ^= right.ByteValue; break; |
| | | 7113 | | case TypeCode.Int16: left.Int16Value ^= right.Int16Value; break; |
| | | 7114 | | case TypeCode.UInt16: left.UInt16Value ^= right.UInt16Value; break; |
| | | 7115 | | case TypeCode.Int32: left.Int32Value ^= right.Int32Value; break; |
| | | 7116 | | case TypeCode.UInt32: left.UInt32Value ^= right.UInt32Value; break; |
| | | 7117 | | case TypeCode.Int64: left.Int64Value ^= right.Int64Value; break; |
| | | 7118 | | case TypeCode.UInt64: left.UInt64Value ^= right.UInt64Value; break; |
| | | 7119 | | default: UnreachableCase(code); break; |
| | | 7120 | | } |
| | | 7121 | | break; |
| | | 7122 | | case ExpressionType.LeftShift: |
| | | 7123 | | switch (code) |
| | | 7124 | | { |
| | | 7125 | | case TypeCode.Char: left.CharValue <<= right.CharValue; break; |
| | | 7126 | | case TypeCode.SByte: left.SByteValue <<= right.SByteValue; break; |
| | | 7127 | | case TypeCode.Byte: left.ByteValue <<= right.ByteValue; break; |
| | | 7128 | | case TypeCode.Int16: left.Int16Value <<= right.Int16Value; break; |
| | | 7129 | | case TypeCode.UInt16: left.UInt16Value <<= right.UInt16Value; break; |
| | | 7130 | | case TypeCode.Int32: left.Int32Value <<= right.Int32Value; break; |
| | | 7131 | | case TypeCode.UInt32: left.UInt32Value <<= (int)right.UInt32Value; break; |
| | | 7132 | | case TypeCode.Int64: left.Int64Value <<= (int)right.Int64Value; break; |
| | | 7133 | | case TypeCode.UInt64: left.UInt64Value <<= (int)right.UInt64Value; break; |
| | | 7134 | | default: UnreachableCase(code); break; |
| | | 7135 | | } |
| | | 7136 | | break; |
| | | 7137 | | case ExpressionType.RightShift: |
| | | 7138 | | switch (code) |
| | | 7139 | | { |
| | | 7140 | | case TypeCode.Char: left.CharValue >>= right.CharValue; break; |
| | | 7141 | | case TypeCode.SByte: left.SByteValue >>= right.SByteValue; break; |
| | | 7142 | | case TypeCode.Byte: left.ByteValue >>= right.ByteValue; break; |
| | | 7143 | | case TypeCode.Int16: left.Int16Value >>= right.Int16Value; break; |
| | | 7144 | | case TypeCode.UInt16: left.UInt16Value >>= right.UInt16Value; break; |
| | | 7145 | | case TypeCode.Int32: left.Int32Value >>= right.Int32Value; break; |
| | | 7146 | | case TypeCode.UInt32: left.UInt32Value >>= (int)right.UInt32Value; break; |
| | | 7147 | | case TypeCode.Int64: left.Int64Value >>= (int)right.Int64Value; break; |
| | | 7148 | | case TypeCode.UInt64: left.UInt64Value >>= (int)right.UInt64Value; break; |
| | | 7149 | | default: UnreachableCase(code); break; |
| | | 7150 | | } |
| | | 7151 | | break; |
| | | 7152 | | default: UnreachableCase(nodeType); break; |
| | | 7153 | | } |
| | | 7154 | | } |
| | | 7155 | | |
| | | 7156 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | | 7157 | | internal static bool TrySetPrimitiveValueToDefault(ref PValue value, TypeCode code) |
| | | 7158 | | { |
| | | 7159 | | switch (code) |
| | | 7160 | | { |
| | | 7161 | | case TypeCode.Char: value.CharValue = default; break; |
| | | 7162 | | case TypeCode.SByte: value.SByteValue = default; break; |
| | | 7163 | | case TypeCode.Byte: value.ByteValue = default; break; |
| | | 7164 | | case TypeCode.Int16: value.Int16Value = default; break; |
| | | 7165 | | case TypeCode.UInt16: value.UInt16Value = default; break; |
| | | 7166 | | case TypeCode.Int32: value.Int32Value = default; break; |
| | | 7167 | | case TypeCode.UInt32: value.UInt32Value = default; break; |
| | | 7168 | | case TypeCode.Int64: value.Int64Value = default; break; |
| | | 7169 | | case TypeCode.UInt64: value.UInt64Value = default; break; |
| | | 7170 | | case TypeCode.Single: value.SingleValue = default; break; |
| | | 7171 | | case TypeCode.Double: value.DoubleValue = default; break; |
| | | 7172 | | default: return false; |
| | | 7173 | | } |
| | | 7174 | | return true; |
| | | 7175 | | } |
| | | 7176 | | |
| | | 7177 | | /// <summary>Fast, mostly negative check to skip or proceed with interpretation. |
| | | 7178 | | /// Depending on the context you may avoid calling it because you know the interpreted expression beforehand |
| | | 7179 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | | 7180 | | public static bool IsCandidateForInterpretation(Expression expr) |
| | | 7181 | | { |
| | | 7182 | | var nodeType = expr.NodeType; |
| | | 7183 | | return |
| | | 7184 | | nodeType == ExpressionType.Constant | |
| | | 7185 | | nodeType == ExpressionType.Default | |
| | | 7186 | | nodeType == ExpressionType.Convert | |
| | | 7187 | | nodeType == ExpressionType.Not | |
| | | 7188 | | nodeType == ExpressionType.Negate | |
| | | 7189 | | expr is BinaryExpression; |
| | | 7190 | | } |
| | | 7191 | | |
| | | 7192 | | #if INTERPRETATION_DIAGNOSTICS |
| | | 7193 | | |
| | | 7194 | | [UnconditionalSuppressMessage("Trimming", "IL2026:Members annotated with 'RequiresUnreferencedCodeAttribute' |
| | | 7195 | | [UnconditionalSuppressMessage("Trimming", "IL2075:Members annotated with 'RequiresUnreferencedCodeAttribute' |
| | | 7196 | | private static void CollectCallingTestName() |
| | | 7197 | | { |
| | | 7198 | | var stackTrace = new StackTrace(); |
| | | 7199 | | var frames = stackTrace.GetFrames(); |
| | | 7200 | | |
| | | 7201 | | // Skip this method and its immediate caller, and start from the outer callers |
| | | 7202 | | var found = false; |
| | | 7203 | | for (int i = 3; i < frames.Length; ++i) |
| | | 7204 | | { |
| | | 7205 | | var frame = frames[i]; |
| | | 7206 | | var method = frame.GetMethod(); |
| | | 7207 | | var type = method?.DeclaringType; |
| | | 7208 | | if (type == null) |
| | | 7209 | | continue; |
| | | 7210 | | |
| | | 7211 | | var ifaces = type.GetInterfaces(); |
| | | 7212 | | if (ifaces.Length == 0) |
| | | 7213 | | continue; |
| | | 7214 | | |
| | | 7215 | | foreach (var iface in ifaces) |
| | | 7216 | | if (iface.Name.Contains("Test")) |
| | | 7217 | | { |
| | | 7218 | | found = true; |
| | | 7219 | | break; |
| | | 7220 | | } |
| | | 7221 | | |
| | | 7222 | | if (found) |
| | | 7223 | | { |
| | | 7224 | | found = true; |
| | | 7225 | | Console.WriteLine($"Interpretation in: {type.Name}.{method.Name}"); |
| | | 7226 | | break; // collect the first found thing in stack trace |
| | | 7227 | | } |
| | | 7228 | | } |
| | | 7229 | | |
| | | 7230 | | if (!found) |
| | | 7231 | | { |
| | | 7232 | | var methodTrace = string.Join("; ", frames.Skip(3).Select(f => f.GetMethod().Name).ToArray()); |
| | | 7233 | | Console.WriteLine($"Interpretation in: not found in stack trace: {methodTrace}"); |
| | | 7234 | | } |
| | | 7235 | | } |
| | | 7236 | | #endif |
| | | 7237 | | |
| | | 7238 | | /// <summary>Wraps `TryInterpretPrimitive` in the try catch block. |
| | | 7239 | | /// In case of exception FEC will emit the whole computation to throw exception in the invocation phase</sum |
| | | 7240 | | public static bool TryInterpretBool(out bool result, Expression expr, CompilerFlags flags) |
| | | 7241 | | { |
| | | 7242 | | Debug.Assert(expr.Type.IsPrimitive); |
| | | 7243 | | result = false; |
| | | 7244 | | if ((flags & CompilerFlags.DisableInterpreter) != 0) |
| | | 7245 | | return false; |
| | | 7246 | | try |
| | | 7247 | | { |
| | | 7248 | | var ok = TryInterpretBool(ref result, expr, expr.NodeType); |
| | | 7249 | | #if INTERPRETATION_DIAGNOSTICS |
| | | 7250 | | if (ok) CollectCallingTestName(); |
| | | 7251 | | #endif |
| | | 7252 | | return ok; |
| | | 7253 | | } |
| | | 7254 | | catch |
| | | 7255 | | { |
| | | 7256 | | // ignore exception and return the false and rethrow the exception in the invocation time |
| | | 7257 | | return false; |
| | | 7258 | | } |
| | | 7259 | | } |
| | | 7260 | | |
| | | 7261 | | // todo: @perf try split to `TryInterpretBinary` overload to streamline the calls for TryEmitConditional and |
| | | 7262 | | /// <summary>Tries to interpret the expression of the Primitive type of Constant, Convert, Logical, Comparis |
| | | 7263 | | internal static bool TryInterpretBool(ref bool resultBool, Expression expr, ExpressionType nodeType) |
| | | 7264 | | { |
| | | 7265 | | // what operations are supported, to get the boolean result? |
| | | 7266 | | // yes: not, logical, comparison, default |
| | | 7267 | | // not: negate, arithmetic, convert to bool |
| | | 7268 | | if (nodeType == ExpressionType.Not) |
| | | 7269 | | { |
| | | 7270 | | var operandExpr = ((UnaryExpression)expr).Operand; |
| | | 7271 | | if (operandExpr is ConstantExpression co) |
| | | 7272 | | resultBool = (bool)co.Value; |
| | | 7273 | | else if (!TryInterpretBool(ref resultBool, operandExpr, operandExpr.NodeType)) |
| | | 7274 | | return false; |
| | | 7275 | | |
| | | 7276 | | resultBool = !resultBool; |
| | | 7277 | | return true; |
| | | 7278 | | } |
| | | 7279 | | |
| | | 7280 | | if (nodeType == ExpressionType.AndAlso | |
| | | 7281 | | nodeType == ExpressionType.OrElse) |
| | | 7282 | | { |
| | | 7283 | | var binaryExpr = (BinaryExpression)expr; |
| | | 7284 | | |
| | | 7285 | | // Interpreting the left part as the first candidate for the result |
| | | 7286 | | var left = binaryExpr.Left; |
| | | 7287 | | if (left is ConstantExpression lc) |
| | | 7288 | | resultBool = (bool)lc.Value; |
| | | 7289 | | else if (!TryInterpretBool(ref resultBool, left, left.NodeType)) |
| | | 7290 | | return false; |
| | | 7291 | | |
| | | 7292 | | // Short circuit the interpretation, because this is an actual logic of these logical operations |
| | | 7293 | | if (resultBool & nodeType == ExpressionType.OrElse || |
| | | 7294 | | !resultBool & nodeType == ExpressionType.AndAlso) |
| | | 7295 | | return true; |
| | | 7296 | | |
| | | 7297 | | // If the first part is not enough to decide of the expression result, go right |
| | | 7298 | | var right = binaryExpr.Right; |
| | | 7299 | | if (right is ConstantExpression rc) |
| | | 7300 | | { |
| | | 7301 | | resultBool = (bool)rc.Value; |
| | | 7302 | | return true; |
| | | 7303 | | } |
| | | 7304 | | return TryInterpretBool(ref resultBool, right, right.NodeType); |
| | | 7305 | | } |
| | | 7306 | | |
| | | 7307 | | if (nodeType == ExpressionType.Equal | |
| | | 7308 | | nodeType == ExpressionType.NotEqual) |
| | | 7309 | | { |
| | | 7310 | | var binaryExpr = (BinaryExpression)expr; |
| | | 7311 | | var right = binaryExpr.Right; |
| | | 7312 | | var left = binaryExpr.Left; |
| | | 7313 | | var leftCode = Type.GetTypeCode(left.Type); |
| | | 7314 | | if (leftCode == TypeCode.Boolean) |
| | | 7315 | | { |
| | | 7316 | | var leftBool = false; |
| | | 7317 | | if (left is ConstantExpression lc) |
| | | 7318 | | leftBool = (bool)lc.Value; |
| | | 7319 | | else if (!TryInterpretBool(ref leftBool, left, left.NodeType)) |
| | | 7320 | | return false; |
| | | 7321 | | |
| | | 7322 | | var rightBool = false; |
| | | 7323 | | if (right is ConstantExpression rc) |
| | | 7324 | | rightBool = (bool)rc.Value; |
| | | 7325 | | else if (!TryInterpretBool(ref rightBool, right, right.NodeType)) |
| | | 7326 | | return false; |
| | | 7327 | | |
| | | 7328 | | resultBool = nodeType == ExpressionType.Equal ? leftBool == rightBool : leftBool != rightBool; |
| | | 7329 | | return true; |
| | | 7330 | | } |
| | | 7331 | | if (leftCode == TypeCode.Int32) |
| | | 7332 | | { |
| | | 7333 | | var leftInt = 0; |
| | | 7334 | | if (left is ConstantExpression lc) |
| | | 7335 | | leftInt = (int)lc.Value; |
| | | 7336 | | else if (!TryInterpretInt(ref leftInt, left, left.NodeType)) |
| | | 7337 | | return false; |
| | | 7338 | | |
| | | 7339 | | var rightInt = 0; |
| | | 7340 | | if (right is ConstantExpression rc) |
| | | 7341 | | rightInt = (int)rc.Value; |
| | | 7342 | | else if (!TryInterpretInt(ref rightInt, right, right.NodeType)) |
| | | 7343 | | return false; |
| | | 7344 | | |
| | | 7345 | | resultBool = nodeType == ExpressionType.Equal ? leftInt == rightInt : leftInt != rightInt; |
| | | 7346 | | return true; |
| | | 7347 | | } |
| | | 7348 | | if (leftCode == TypeCode.Decimal) |
| | | 7349 | | { |
| | | 7350 | | decimal decimalLeft = default; |
| | | 7351 | | if (left is ConstantExpression lc) |
| | | 7352 | | decimalLeft = (decimal)lc.Value; |
| | | 7353 | | else if (!TryInterpretDecimal(ref decimalLeft, left, left.NodeType)) |
| | | 7354 | | return false; |
| | | 7355 | | |
| | | 7356 | | decimal rightDec = default; |
| | | 7357 | | if (right is ConstantExpression rc) |
| | | 7358 | | rightDec = (decimal)rc.Value; |
| | | 7359 | | else if (!TryInterpretDecimal(ref rightDec, right, right.NodeType)) |
| | | 7360 | | return false; |
| | | 7361 | | |
| | | 7362 | | resultBool = nodeType == ExpressionType.Equal ? decimalLeft == rightDec : decimalLeft != rightDe |
| | | 7363 | | return true; |
| | | 7364 | | } |
| | | 7365 | | // not a bool, int, or decimal |
| | | 7366 | | { |
| | | 7367 | | PValue leftVal = default; |
| | | 7368 | | if (left is ConstantExpression lc && !TryUnboxToPrimitiveValue(ref leftVal, lc.Value, leftCode) |
| | | 7369 | | !TryInterpretPrimitiveValue(ref leftVal, left, leftCode, left.NodeType)) |
| | | 7370 | | return false; |
| | | 7371 | | |
| | | 7372 | | PValue rightVal = default; |
| | | 7373 | | if (right is ConstantExpression rc && !TryUnboxToPrimitiveValue(ref rightVal, rc.Value, leftCode |
| | | 7374 | | !TryInterpretPrimitiveValue(ref rightVal, right, leftCode, right.NodeType)) |
| | | 7375 | | return false; |
| | | 7376 | | |
| | | 7377 | | resultBool = leftCode switch |
| | | 7378 | | { |
| | | 7379 | | TypeCode.Char => leftVal.CharValue == rightVal.CharValue, |
| | | 7380 | | TypeCode.SByte => leftVal.SByteValue == rightVal.SByteValue, |
| | | 7381 | | TypeCode.Byte => leftVal.ByteValue == rightVal.ByteValue, |
| | | 7382 | | TypeCode.Int16 => leftVal.Int16Value == rightVal.Int16Value, |
| | | 7383 | | TypeCode.UInt16 => leftVal.UInt16Value == rightVal.UInt16Value, |
| | | 7384 | | TypeCode.Int32 => leftVal.Int32Value == rightVal.Int32Value, |
| | | 7385 | | TypeCode.UInt32 => leftVal.UInt32Value == rightVal.UInt32Value, |
| | | 7386 | | TypeCode.Int64 => leftVal.Int64Value == rightVal.Int64Value, |
| | | 7387 | | TypeCode.UInt64 => leftVal.UInt64Value == rightVal.UInt64Value, |
| | | 7388 | | TypeCode.Single => leftVal.SingleValue == rightVal.SingleValue, |
| | | 7389 | | TypeCode.Double => leftVal.DoubleValue == rightVal.DoubleValue, |
| | | 7390 | | _ => UnreachableCase(leftCode, false), |
| | | 7391 | | }; |
| | | 7392 | | resultBool = nodeType == ExpressionType.Equal ? resultBool : !resultBool; |
| | | 7393 | | return true; |
| | | 7394 | | } |
| | | 7395 | | } |
| | | 7396 | | |
| | | 7397 | | if (nodeType == ExpressionType.GreaterThan | |
| | | 7398 | | nodeType == ExpressionType.GreaterThanOrEqual | |
| | | 7399 | | nodeType == ExpressionType.LessThan | |
| | | 7400 | | nodeType == ExpressionType.LessThanOrEqual) |
| | | 7401 | | { |
| | | 7402 | | var binaryExpr = (BinaryExpression)expr; |
| | | 7403 | | var left = binaryExpr.Left; |
| | | 7404 | | var right = binaryExpr.Right; |
| | | 7405 | | var leftCode = Type.GetTypeCode(left.Type); |
| | | 7406 | | Debug.Assert(leftCode != TypeCode.Boolean, "Boolean values are not comparable by less or greater"); |
| | | 7407 | | |
| | | 7408 | | if (leftCode == TypeCode.Int32) |
| | | 7409 | | { |
| | | 7410 | | int intLeft = 0; |
| | | 7411 | | if (left is ConstantExpression lc) |
| | | 7412 | | intLeft = (int)lc.Value; |
| | | 7413 | | else if (!TryInterpretInt(ref intLeft, left, left.NodeType)) |
| | | 7414 | | return false; |
| | | 7415 | | |
| | | 7416 | | int rightInt = 0; |
| | | 7417 | | if (right is ConstantExpression rc) |
| | | 7418 | | rightInt = (int)rc.Value; |
| | | 7419 | | else if (!TryInterpretInt(ref rightInt, right, right.NodeType)) |
| | | 7420 | | return false; |
| | | 7421 | | |
| | | 7422 | | resultBool = nodeType switch |
| | | 7423 | | { |
| | | 7424 | | ExpressionType.GreaterThan => intLeft > rightInt, |
| | | 7425 | | ExpressionType.GreaterThanOrEqual => intLeft >= rightInt, |
| | | 7426 | | ExpressionType.LessThan => intLeft < rightInt, |
| | | 7427 | | ExpressionType.LessThanOrEqual => intLeft <= rightInt, |
| | | 7428 | | _ => UnreachableCase(nodeType, false), |
| | | 7429 | | }; |
| | | 7430 | | return true; |
| | | 7431 | | } |
| | | 7432 | | if (leftCode == TypeCode.Decimal) |
| | | 7433 | | { |
| | | 7434 | | decimal leftDec = default; |
| | | 7435 | | if (left is ConstantExpression lc) |
| | | 7436 | | leftDec = (decimal)lc.Value; |
| | | 7437 | | else if (!TryInterpretDecimal(ref leftDec, left, left.NodeType)) |
| | | 7438 | | return false; |
| | | 7439 | | |
| | | 7440 | | decimal rightDec = default; |
| | | 7441 | | if (right is ConstantExpression rc) |
| | | 7442 | | rightDec = (decimal)rc.Value; |
| | | 7443 | | else if (!TryInterpretDecimal(ref rightDec, right, right.NodeType)) |
| | | 7444 | | return false; |
| | | 7445 | | |
| | | 7446 | | resultBool = nodeType switch |
| | | 7447 | | { |
| | | 7448 | | ExpressionType.GreaterThan => leftDec > rightDec, |
| | | 7449 | | ExpressionType.GreaterThanOrEqual => leftDec >= rightDec, |
| | | 7450 | | ExpressionType.LessThan => leftDec < rightDec, |
| | | 7451 | | ExpressionType.LessThanOrEqual => leftDec <= rightDec, |
| | | 7452 | | _ => UnreachableCase(nodeType, false), |
| | | 7453 | | }; |
| | | 7454 | | return true; |
| | | 7455 | | } |
| | | 7456 | | // not a bool, int, or decimal |
| | | 7457 | | { |
| | | 7458 | | PValue leftVal = default; |
| | | 7459 | | if (left is ConstantExpression lc && !TryUnboxToPrimitiveValue(ref leftVal, lc.Value, leftCode) |
| | | 7460 | | !TryInterpretPrimitiveValue(ref leftVal, left, leftCode, left.NodeType)) |
| | | 7461 | | return false; |
| | | 7462 | | |
| | | 7463 | | PValue rightVal = default; |
| | | 7464 | | if (right is ConstantExpression rc && !TryUnboxToPrimitiveValue(ref rightVal, rc.Value, leftCode |
| | | 7465 | | !TryInterpretPrimitiveValue(ref rightVal, right, leftCode, right.NodeType)) |
| | | 7466 | | return false; |
| | | 7467 | | |
| | | 7468 | | resultBool = ComparePrimitiveValues(ref leftVal, ref rightVal, leftCode, nodeType); |
| | | 7469 | | return true; |
| | | 7470 | | } |
| | | 7471 | | } |
| | | 7472 | | |
| | | 7473 | | if (expr is ConstantExpression constExpr) |
| | | 7474 | | { |
| | | 7475 | | resultBool = (bool)constExpr.Value; |
| | | 7476 | | return true; |
| | | 7477 | | } |
| | | 7478 | | |
| | | 7479 | | if (nodeType == ExpressionType.Default) |
| | | 7480 | | { |
| | | 7481 | | resultBool = false; |
| | | 7482 | | return true; |
| | | 7483 | | } |
| | | 7484 | | |
| | | 7485 | | return false; |
| | | 7486 | | } |
| | | 7487 | | |
| | | 7488 | | /// <summary>Tries to interpret the expression of the Primitive type of Constant, Convert, Logical, Comparis |
| | | 7489 | | internal static bool TryInterpretDecimal(ref decimal resultDec, Expression expr, ExpressionType nodeType) |
| | | 7490 | | { |
| | | 7491 | | // What operations are supported, to get the decimal result: |
| | | 7492 | | // yes: arithmetic, negate, default, convert |
| | | 7493 | | // no: not, logical, comparison |
| | | 7494 | | |
| | | 7495 | | if (IsArithmeticBinary(nodeType)) |
| | | 7496 | | { |
| | | 7497 | | var binaryExpr = (BinaryExpression)expr; |
| | | 7498 | | var left = binaryExpr.Left; |
| | | 7499 | | if (left is ConstantExpression lc) |
| | | 7500 | | resultDec = (decimal)lc.Value; |
| | | 7501 | | else if (!TryInterpretDecimal(ref resultDec, left, left.NodeType)) |
| | | 7502 | | return false; |
| | | 7503 | | |
| | | 7504 | | decimal rightDec = default; |
| | | 7505 | | var right = binaryExpr.Right; |
| | | 7506 | | if (right is ConstantExpression rc) |
| | | 7507 | | rightDec = (decimal)rc.Value; |
| | | 7508 | | else if (!TryInterpretDecimal(ref rightDec, right, right.NodeType)) |
| | | 7509 | | return false; |
| | | 7510 | | |
| | | 7511 | | switch (nodeType) |
| | | 7512 | | { |
| | | 7513 | | case ExpressionType.Add: resultDec += rightDec; break; |
| | | 7514 | | case ExpressionType.Subtract: resultDec -= rightDec; break; |
| | | 7515 | | case ExpressionType.Multiply: resultDec *= rightDec; break; |
| | | 7516 | | case ExpressionType.Divide: resultDec /= rightDec; break; |
| | | 7517 | | case ExpressionType.Modulo: resultDec %= rightDec; break; |
| | | 7518 | | default: UnreachableCase(nodeType); break; |
| | | 7519 | | } |
| | | 7520 | | return true; |
| | | 7521 | | } |
| | | 7522 | | |
| | | 7523 | | if (nodeType == ExpressionType.Negate) |
| | | 7524 | | { |
| | | 7525 | | var operandExpr = ((UnaryExpression)expr).Operand; |
| | | 7526 | | if (operandExpr is ConstantExpression co) |
| | | 7527 | | resultDec = (decimal)co.Value; |
| | | 7528 | | else if (!TryInterpretDecimal(ref resultDec, operandExpr, operandExpr.NodeType)) |
| | | 7529 | | return false; |
| | | 7530 | | |
| | | 7531 | | resultDec = -resultDec; |
| | | 7532 | | return true; |
| | | 7533 | | } |
| | | 7534 | | |
| | | 7535 | | if (expr is ConstantExpression constExpr) |
| | | 7536 | | { |
| | | 7537 | | resultDec = (decimal)constExpr.Value; |
| | | 7538 | | return true; |
| | | 7539 | | } |
| | | 7540 | | |
| | | 7541 | | if (nodeType == ExpressionType.Default) |
| | | 7542 | | { |
| | | 7543 | | resultDec = default; |
| | | 7544 | | return true; |
| | | 7545 | | } |
| | | 7546 | | |
| | | 7547 | | if (nodeType == ExpressionType.Convert) |
| | | 7548 | | { |
| | | 7549 | | var operandExpr = ((UnaryExpression)expr).Operand; |
| | | 7550 | | var operandCode = Type.GetTypeCode(operandExpr.Type); |
| | | 7551 | | Debug.Assert(operandCode != TypeCode.Boolean, |
| | | 7552 | | "Operand may be a decimal but cannot be bool, because there is no conversation from bool to the |
| | | 7553 | | |
| | | 7554 | | PValue operandVal = default; |
| | | 7555 | | if (operandExpr is ConstantExpression co && !TryUnboxToPrimitiveValue(ref operandVal, co.Value, oper |
| | | 7556 | | !TryInterpretPrimitiveValue(ref operandVal, operandExpr, operandCode, operandExpr.NodeType)) |
| | | 7557 | | return false; |
| | | 7558 | | |
| | | 7559 | | resultDec = operandCode switch |
| | | 7560 | | { |
| | | 7561 | | TypeCode.Char => operandVal.CharValue, |
| | | 7562 | | TypeCode.SByte => operandVal.SByteValue, |
| | | 7563 | | TypeCode.Byte => operandVal.ByteValue, |
| | | 7564 | | TypeCode.Int16 => operandVal.Int16Value, |
| | | 7565 | | TypeCode.UInt16 => operandVal.UInt16Value, |
| | | 7566 | | TypeCode.Int32 => operandVal.Int32Value, |
| | | 7567 | | TypeCode.UInt32 => operandVal.UInt32Value, |
| | | 7568 | | TypeCode.Int64 => operandVal.Int64Value, |
| | | 7569 | | TypeCode.UInt64 => operandVal.UInt64Value, |
| | | 7570 | | TypeCode.Single => (decimal)operandVal.SingleValue, |
| | | 7571 | | TypeCode.Double => (decimal)operandVal.DoubleValue, |
| | | 7572 | | _ => UnreachableCase(operandCode, default(decimal)), |
| | | 7573 | | }; |
| | | 7574 | | return true; |
| | | 7575 | | } |
| | | 7576 | | |
| | | 7577 | | return false; |
| | | 7578 | | } |
| | | 7579 | | |
| | | 7580 | | /// <summary>Tries to interpret the expression of the Primitive type of Constant, Convert, Logical, Comparis |
| | | 7581 | | /// Returns `false` if it failed to do so.</summary> |
| | | 7582 | | internal static bool TryInterpretInt(ref int resultInt, Expression expr, ExpressionType nodeType) |
| | | 7583 | | { |
| | | 7584 | | // What is supported for the int result |
| | | 7585 | | // yes: arithmetic, convert, default |
| | | 7586 | | // no: not, logical, comparison |
| | | 7587 | | if (IsArithmeticBinary(nodeType)) |
| | | 7588 | | { |
| | | 7589 | | var binaryExpr = (BinaryExpression)expr; |
| | | 7590 | | var left = binaryExpr.Left; |
| | | 7591 | | if (left is ConstantExpression lc) |
| | | 7592 | | resultInt = (int)lc.Value; |
| | | 7593 | | else if (!TryInterpretInt(ref resultInt, left, left.NodeType)) |
| | | 7594 | | return false; |
| | | 7595 | | |
| | | 7596 | | int rightVal = 0; |
| | | 7597 | | var right = binaryExpr.Right; |
| | | 7598 | | if (right is ConstantExpression rc) |
| | | 7599 | | rightVal = (int)rc.Value; |
| | | 7600 | | else if (!TryInterpretInt(ref rightVal, right, right.NodeType)) |
| | | 7601 | | return false; |
| | | 7602 | | |
| | | 7603 | | resultInt = nodeType switch |
| | | 7604 | | { |
| | | 7605 | | ExpressionType.Add => resultInt + rightVal, |
| | | 7606 | | ExpressionType.Subtract => resultInt - rightVal, |
| | | 7607 | | ExpressionType.Multiply => resultInt * rightVal, |
| | | 7608 | | ExpressionType.Divide => resultInt / rightVal, |
| | | 7609 | | ExpressionType.Modulo => resultInt % rightVal, |
| | | 7610 | | ExpressionType.LeftShift => resultInt << rightVal, |
| | | 7611 | | ExpressionType.RightShift => resultInt >> rightVal, |
| | | 7612 | | ExpressionType.And => resultInt & rightVal, |
| | | 7613 | | ExpressionType.Or => resultInt | rightVal, |
| | | 7614 | | ExpressionType.ExclusiveOr => resultInt ^ rightVal, |
| | | 7615 | | ExpressionType.Power => (int)Math.Pow(resultInt, rightVal), |
| | | 7616 | | _ => UnreachableCase(nodeType, 0), |
| | | 7617 | | }; |
| | | 7618 | | return true; |
| | | 7619 | | } |
| | | 7620 | | |
| | | 7621 | | if (nodeType == ExpressionType.Negate) |
| | | 7622 | | { |
| | | 7623 | | var operandExpr = ((UnaryExpression)expr).Operand; |
| | | 7624 | | if (operandExpr is ConstantExpression co) |
| | | 7625 | | resultInt = (int)co.Value; |
| | | 7626 | | else if (!TryInterpretInt(ref resultInt, operandExpr, operandExpr.NodeType)) |
| | | 7627 | | return false; |
| | | 7628 | | |
| | | 7629 | | resultInt = -resultInt; |
| | | 7630 | | return true; |
| | | 7631 | | } |
| | | 7632 | | |
| | | 7633 | | if (expr is ConstantExpression constExpr) |
| | | 7634 | | { |
| | | 7635 | | resultInt = (int)constExpr.Value; |
| | | 7636 | | return true; |
| | | 7637 | | } |
| | | 7638 | | |
| | | 7639 | | if (nodeType == ExpressionType.Default) |
| | | 7640 | | { |
| | | 7641 | | resultInt = 0; |
| | | 7642 | | return true; |
| | | 7643 | | } |
| | | 7644 | | |
| | | 7645 | | if (nodeType == ExpressionType.Convert) |
| | | 7646 | | { |
| | | 7647 | | var operandExpr = ((UnaryExpression)expr).Operand; |
| | | 7648 | | var operandCode = Type.GetTypeCode(operandExpr.Type); |
| | | 7649 | | Debug.Assert(operandCode != TypeCode.Boolean, |
| | | 7650 | | "Operand may be a decimal but cannot be bool, because there is no conversation from bool to the |
| | | 7651 | | |
| | | 7652 | | if (operandCode != TypeCode.Decimal) |
| | | 7653 | | { |
| | | 7654 | | PValue operandVal = default; |
| | | 7655 | | if (operandExpr is ConstantExpression co && !TryUnboxToPrimitiveValue(ref operandVal, co.Value, |
| | | 7656 | | !TryInterpretPrimitiveValue(ref operandVal, operandExpr, operandCode, operandExpr.NodeType)) |
| | | 7657 | | return false; |
| | | 7658 | | |
| | | 7659 | | resultInt = operandCode switch |
| | | 7660 | | { |
| | | 7661 | | TypeCode.Char => operandVal.CharValue, |
| | | 7662 | | TypeCode.SByte => operandVal.SByteValue, |
| | | 7663 | | TypeCode.Byte => operandVal.ByteValue, |
| | | 7664 | | TypeCode.Int16 => operandVal.Int16Value, |
| | | 7665 | | TypeCode.UInt16 => operandVal.UInt16Value, |
| | | 7666 | | TypeCode.Int32 => operandVal.Int32Value, |
| | | 7667 | | TypeCode.UInt32 => (int)operandVal.UInt32Value, |
| | | 7668 | | TypeCode.Int64 => (int)operandVal.Int64Value, |
| | | 7669 | | TypeCode.UInt64 => (int)operandVal.UInt64Value, |
| | | 7670 | | TypeCode.Single => (int)operandVal.SingleValue, |
| | | 7671 | | TypeCode.Double => (int)operandVal.DoubleValue, |
| | | 7672 | | _ => UnreachableCase(operandCode, 0), |
| | | 7673 | | }; |
| | | 7674 | | return true; |
| | | 7675 | | } |
| | | 7676 | | // then for the decimal |
| | | 7677 | | { |
| | | 7678 | | decimal resultDec = default; |
| | | 7679 | | if (operandExpr is ConstantExpression co) |
| | | 7680 | | resultDec = (decimal)co.Value; |
| | | 7681 | | else if (!TryInterpretDecimal(ref resultDec, operandExpr, operandExpr.NodeType)) |
| | | 7682 | | return false; |
| | | 7683 | | |
| | | 7684 | | resultInt = (int)resultDec; |
| | | 7685 | | return true; |
| | | 7686 | | } |
| | | 7687 | | } |
| | | 7688 | | return false; |
| | | 7689 | | } |
| | | 7690 | | |
| | | 7691 | | /// <summary>Tries to interpret the expression of the Primitive type of Constant, Convert, Logical, Comparis |
| | | 7692 | | /// Returns `false` if it is failed to do so.</summary> |
| | | 7693 | | internal static bool TryInterpretPrimitiveValue(ref PValue result, Expression expr, TypeCode exprCode, Expre |
| | | 7694 | | { |
| | | 7695 | | // What is supported for the non-boolean, non-decimal result |
| | | 7696 | | // yes: arithmetic, convert, default |
| | | 7697 | | // no: not, logical, comparison |
| | | 7698 | | if (IsArithmeticBinary(nodeType)) |
| | | 7699 | | { |
| | | 7700 | | var binaryExpr = (BinaryExpression)expr; |
| | | 7701 | | var left = binaryExpr.Left; |
| | | 7702 | | var leftCode = Type.GetTypeCode(left.Type); |
| | | 7703 | | if (left is ConstantExpression lc && !TryUnboxToPrimitiveValue(ref result, lc.Value, leftCode) || |
| | | 7704 | | !TryInterpretPrimitiveValue(ref result, left, leftCode, left.NodeType)) |
| | | 7705 | | return false; |
| | | 7706 | | |
| | | 7707 | | PValue rightVal = default; |
| | | 7708 | | var right = binaryExpr.Right; |
| | | 7709 | | // Using the leftCode to interpret the right part of the binary expression, |
| | | 7710 | | // because for supported operations left and right types are the same |
| | | 7711 | | if (right is ConstantExpression rc && !TryUnboxToPrimitiveValue(ref rightVal, rc.Value, leftCode) || |
| | | 7712 | | !TryInterpretPrimitiveValue(ref rightVal, right, leftCode, right.NodeType)) |
| | | 7713 | | return false; |
| | | 7714 | | |
| | | 7715 | | DoArithmeticForPrimitiveValues(ref result, ref rightVal, leftCode, nodeType); |
| | | 7716 | | return true; |
| | | 7717 | | } |
| | | 7718 | | |
| | | 7719 | | if (nodeType == ExpressionType.Negate) |
| | | 7720 | | { |
| | | 7721 | | var operandExpr = ((UnaryExpression)expr).Operand; |
| | | 7722 | | var operandCode = Type.GetTypeCode(operandExpr.Type); |
| | | 7723 | | if (operandExpr is ConstantExpression co && !TryUnboxToPrimitiveValue(ref result, co.Value, operandC |
| | | 7724 | | !TryInterpretPrimitiveValue(ref result, operandExpr, operandCode, operandExpr.NodeType)) |
| | | 7725 | | return false; |
| | | 7726 | | |
| | | 7727 | | NegatePrimitiveValue(ref result, operandCode); |
| | | 7728 | | return true; |
| | | 7729 | | } |
| | | 7730 | | |
| | | 7731 | | if (expr is ConstantExpression constExpr) |
| | | 7732 | | return TryUnboxToPrimitiveValue(ref result, constExpr.Value, exprCode); |
| | | 7733 | | |
| | | 7734 | | if (nodeType == ExpressionType.Default) |
| | | 7735 | | return TrySetPrimitiveValueToDefault(ref result, exprCode); |
| | | 7736 | | |
| | | 7737 | | if (nodeType == ExpressionType.Convert) |
| | | 7738 | | { |
| | | 7739 | | var operandExpr = ((UnaryExpression)expr).Operand; |
| | | 7740 | | var operandCode = Type.GetTypeCode(operandExpr.Type); |
| | | 7741 | | Debug.Assert(operandCode != TypeCode.Boolean, |
| | | 7742 | | "Operand may be a decimal but cannot be bool, because there is no conversation from bool to the |
| | | 7743 | | |
| | | 7744 | | if (operandCode != TypeCode.Decimal) |
| | | 7745 | | { |
| | | 7746 | | if (operandExpr is ConstantExpression co && !TryUnboxToPrimitiveValue(ref result, co.Value, oper |
| | | 7747 | | !TryInterpretPrimitiveValue(ref result, operandExpr, operandCode, operandExpr.NodeType)) |
| | | 7748 | | return false; |
| | | 7749 | | |
| | | 7750 | | if (exprCode != operandCode) |
| | | 7751 | | ConvertPrimitiveValueFromTo(ref result, operandCode, exprCode); |
| | | 7752 | | return true; |
| | | 7753 | | } |
| | | 7754 | | // then for the decimal |
| | | 7755 | | { |
| | | 7756 | | decimal operandDec = default; |
| | | 7757 | | if (operandExpr is ConstantExpression co) |
| | | 7758 | | operandDec = (decimal)co.Value; |
| | | 7759 | | else if (!TryInterpretDecimal(ref operandDec, operandExpr, operandExpr.NodeType)) |
| | | 7760 | | return false; |
| | | 7761 | | |
| | | 7762 | | switch (exprCode) |
| | | 7763 | | { |
| | | 7764 | | case TypeCode.Char: result.CharValue = (char)operandDec; break; |
| | | 7765 | | case TypeCode.SByte: result.SByteValue = (sbyte)operandDec; break; |
| | | 7766 | | case TypeCode.Byte: result.ByteValue = (byte)operandDec; break; |
| | | 7767 | | case TypeCode.Int16: result.Int16Value = (short)operandDec; break; |
| | | 7768 | | case TypeCode.UInt16: result.UInt16Value = (ushort)operandDec; break; |
| | | 7769 | | case TypeCode.Int32: result.Int32Value = (int)operandDec; break; |
| | | 7770 | | case TypeCode.UInt32: result.UInt32Value = (uint)operandDec; break; |
| | | 7771 | | case TypeCode.Int64: result.Int64Value = (long)operandDec; break; |
| | | 7772 | | case TypeCode.UInt64: result.UInt64Value = (ulong)operandDec; break; |
| | | 7773 | | case TypeCode.Single: result.SingleValue = (float)operandDec; break; |
| | | 7774 | | case TypeCode.Double: result.DoubleValue = (double)operandDec; break; |
| | | 7775 | | default: |
| | | 7776 | | // todo: @feature #472 support conversion to nullable, put nullable marker into PValue o |
| | | 7777 | | return false; |
| | | 7778 | | } |
| | | 7779 | | return true; |
| | | 7780 | | } |
| | | 7781 | | } |
| | | 7782 | | return false; |
| | | 7783 | | } |
| | | 7784 | | } |
| | | 7785 | | } |
| | | 7786 | | |
| | | 7787 | | /// <summary> |
| | | 7788 | | /// Helpers targeting the performance. Extensions method names may be a bit funny (non standard), |
| | | 7789 | | /// in order to prevent conflicts with YOUR helpers with standard names |
| | | 7790 | | /// </summary> |
| | | 7791 | | internal static class Tools |
| | | 7792 | | { |
| | | 7793 | | public static Expression AsExpr(this object obj) => obj as Expression ?? Constant(obj); |
| | | 7794 | | public static Expression[] AsExprs(this object[] obj) |
| | | 7795 | | { |
| | | 7796 | | var exprs = new Expression[obj.Length]; |
| | | 7797 | | for (var i = 0; i < obj.Length; i++) |
| | | 7798 | | exprs[i] = obj[i].AsExpr(); |
| | | 7799 | | return exprs; |
| | | 7800 | | } |
| | | 7801 | | |
| | | 7802 | | /// <summary>Returns true if class is compiler generated. Checking for CompilerGeneratedAttribute |
| | | 7803 | | /// is not enough, because this attribute is not applied for classes generated from "async/await".</summary> |
| | | 7804 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7805 | | public static bool IsCompilerGenerated(this Type type) => |
| | | 7806 | | type.Name[0] == '<'; // consider the types with obstruct names like `<>blah` as compiler-generated |
| | | 7807 | | |
| | | 7808 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7809 | | internal static bool IsUnsigned(this Type type) => |
| | | 7810 | | type == typeof(byte) || |
| | | 7811 | | type == typeof(ushort) || |
| | | 7812 | | type == typeof(uint) || |
| | | 7813 | | type == typeof(ulong); |
| | | 7814 | | |
| | | 7815 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7816 | | internal static bool IsFloatingPoint(this Type type) => |
| | | 7817 | | type == typeof(float) || |
| | | 7818 | | type == typeof(double); |
| | | 7819 | | |
| | | 7820 | | internal static bool IsPrimitiveWithZeroDefaultExceptDecimal(this Type type) |
| | | 7821 | | { |
| | | 7822 | | switch (Type.GetTypeCode(type)) |
| | | 7823 | | { |
| | | 7824 | | case TypeCode.Boolean: |
| | | 7825 | | case TypeCode.Char: |
| | | 7826 | | case TypeCode.SByte: |
| | | 7827 | | case TypeCode.Byte: |
| | | 7828 | | case TypeCode.Int16: |
| | | 7829 | | case TypeCode.UInt16: |
| | | 7830 | | case TypeCode.Int32: |
| | | 7831 | | case TypeCode.UInt32: |
| | | 7832 | | case TypeCode.Int64: |
| | | 7833 | | case TypeCode.UInt64: |
| | | 7834 | | case TypeCode.Single: |
| | | 7835 | | case TypeCode.Double: |
| | | 7836 | | return true; |
| | | 7837 | | default: |
| | | 7838 | | return false; |
| | | 7839 | | } |
| | | 7840 | | } |
| | | 7841 | | |
| | | 7842 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 7843 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7844 | | public static bool IsNullable(this Type type) => |
| | | 7845 | | (type.IsValueType & type.IsGenericType) && type.GetGenericTypeDefinition() == typeof(Nullable<>); |
| | | 7846 | | |
| | | 7847 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 7848 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7849 | | public static Type GetUnderlyingNullableTypeOrNull(this Type type) => |
| | | 7850 | | (type.IsValueType & type.IsGenericType) && type.GetGenericTypeDefinition() == typeof(Nullable<>) ? type.GetG |
| | | 7851 | | |
| | | 7852 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 7853 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7854 | | public static Type GetUnderlyingNullableTypeUnsafe(this Type type) => type.GetGenericArguments()[0]; |
| | | 7855 | | |
| | | 7856 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 7857 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7858 | | public static Type GetNonNullableOrSelf(this Type type) => type.IsNullable() ? type.GetGenericArguments()[0] : t |
| | | 7859 | | |
| | | 7860 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 7861 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7862 | | public static Type GetNullable(this Type type) => typeof(Nullable<>).MakeGenericType(type); |
| | | 7863 | | |
| | | 7864 | | public static string GetArithmeticBinaryOperatorMethodName(this ExpressionType nodeType) => |
| | | 7865 | | nodeType switch |
| | | 7866 | | { |
| | | 7867 | | ExpressionType.Add => "op_Addition", |
| | | 7868 | | ExpressionType.AddChecked => "op_Addition", |
| | | 7869 | | ExpressionType.Subtract => "op_Subtraction", |
| | | 7870 | | ExpressionType.SubtractChecked => "op_Subtraction", |
| | | 7871 | | ExpressionType.Multiply => "op_Multiply", |
| | | 7872 | | ExpressionType.MultiplyChecked => "op_Multiply", |
| | | 7873 | | ExpressionType.Divide => "op_Division", |
| | | 7874 | | ExpressionType.Modulo => "op_Modulus", |
| | | 7875 | | _ => null |
| | | 7876 | | }; |
| | | 7877 | | |
| | | 7878 | | internal static bool IsAssignNodeType(this ExpressionType nodeType) => nodeType switch |
| | | 7879 | | { |
| | | 7880 | | ExpressionType.Assign => true, |
| | | 7881 | | ExpressionType.PowerAssign => true, |
| | | 7882 | | ExpressionType.AndAssign => true, |
| | | 7883 | | ExpressionType.OrAssign => true, |
| | | 7884 | | ExpressionType.AddAssign => true, |
| | | 7885 | | ExpressionType.ExclusiveOrAssign => true, |
| | | 7886 | | ExpressionType.AddAssignChecked => true, |
| | | 7887 | | ExpressionType.SubtractAssign => true, |
| | | 7888 | | ExpressionType.SubtractAssignChecked => true, |
| | | 7889 | | ExpressionType.MultiplyAssign => true, |
| | | 7890 | | ExpressionType.MultiplyAssignChecked => true, |
| | | 7891 | | ExpressionType.DivideAssign => true, |
| | | 7892 | | ExpressionType.LeftShiftAssign => true, |
| | | 7893 | | ExpressionType.RightShiftAssign => true, |
| | | 7894 | | ExpressionType.ModuloAssign => true, |
| | | 7895 | | _ => false |
| | | 7896 | | }; |
| | | 7897 | | |
| | | 7898 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7899 | | internal static bool IsBlockLike(this ExpressionType nodeType) => |
| | | 7900 | | nodeType == ExpressionType.Try | |
| | | 7901 | | nodeType == ExpressionType.Switch | |
| | | 7902 | | nodeType == ExpressionType.Block | |
| | | 7903 | | nodeType == ExpressionType.Loop; |
| | | 7904 | | |
| | | 7905 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7906 | | internal static bool IsReturnable(this ExpressionType nodeType) => |
| | | 7907 | | nodeType != ExpressionType.Goto & |
| | | 7908 | | nodeType != ExpressionType.Label & |
| | | 7909 | | nodeType != ExpressionType.Throw && |
| | | 7910 | | !IsBlockLike(nodeType); |
| | | 7911 | | |
| | | 7912 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7913 | | internal static bool IsBlockLikeOrConditional(this ExpressionType nodeType) => |
| | | 7914 | | nodeType == ExpressionType.Conditional | nodeType == ExpressionType.Coalesce || |
| | | 7915 | | IsBlockLike(nodeType); |
| | | 7916 | | |
| | | 7917 | | internal static Expression StripConvertRecursively(this Expression expr) => |
| | | 7918 | | expr is UnaryExpression convert && convert.NodeType == ExpressionType.Convert |
| | | 7919 | | ? StripConvertRecursively(convert.Operand) |
| | | 7920 | | : expr; |
| | | 7921 | | |
| | | 7922 | | internal static bool IsComplexExpression(this Expression expr) |
| | | 7923 | | { |
| | | 7924 | | expr = expr.StripConvertRecursively(); |
| | | 7925 | | return expr.NodeType == ExpressionType.Invoke |
| | | 7926 | | || expr.NodeType.IsBlockLikeOrConditional(); |
| | | 7927 | | } |
| | | 7928 | | |
| | | 7929 | | internal static bool IsConstantOrDefault(this Expression expr) |
| | | 7930 | | { |
| | | 7931 | | var nodeType = StripConvertRecursively(expr).NodeType; |
| | | 7932 | | return nodeType == ExpressionType.Constant |
| | | 7933 | | | nodeType == ExpressionType.Default; |
| | | 7934 | | } |
| | | 7935 | | |
| | | 7936 | | internal static bool IsParamOrConstantOrDefault(this Expression expr) |
| | | 7937 | | { |
| | | 7938 | | var nodeType = StripConvertRecursively(expr).NodeType; |
| | | 7939 | | return nodeType == ExpressionType.Parameter |
| | | 7940 | | | nodeType == ExpressionType.Constant |
| | | 7941 | | | nodeType == ExpressionType.Default; |
| | | 7942 | | } |
| | | 7943 | | |
| | | 7944 | | internal static string GetCSharpName(this MemberInfo m) |
| | | 7945 | | { |
| | | 7946 | | var name = m.Name; |
| | | 7947 | | if (m is FieldInfo fi && m.DeclaringType.IsValueType) |
| | | 7948 | | { |
| | | 7949 | | // btw, `fi.IsSpecialName` returns `false` :/ |
| | | 7950 | | if (name[0] == '<') // a backing field for the properties in struct, e.g. <Key>k__BackingField |
| | | 7951 | | { |
| | | 7952 | | var end = name.IndexOf('>'); |
| | | 7953 | | if (end > 1) |
| | | 7954 | | name = name.Substring(1, end - 1); |
| | | 7955 | | } |
| | | 7956 | | } |
| | | 7957 | | return name; |
| | | 7958 | | } |
| | | 7959 | | |
| | | 7960 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 7961 | | internal static MethodInfo FindMethod(this Type type, string methodName) |
| | | 7962 | | { |
| | | 7963 | | var methods = type.GetMethods(); |
| | | 7964 | | for (var i = 0; i < methods.Length; i++) |
| | | 7965 | | if (methods[i].Name == methodName) |
| | | 7966 | | return methods[i]; |
| | | 7967 | | return type.BaseType?.FindMethod(methodName); |
| | | 7968 | | } |
| | | 7969 | | |
| | | 7970 | | internal static MethodInfo DelegateTargetGetterMethod = |
| | | 7971 | | typeof(Delegate).GetProperty(nameof(Delegate.Target)).GetMethod; |
| | | 7972 | | |
| | | 7973 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7974 | | internal static MethodInfo FindDelegateInvokeMethod( |
| | | 7975 | | [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicMethods)] this Type type) => |
| | | 7976 | | type.GetMethod("Invoke"); |
| | | 7977 | | |
| | | 7978 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 7979 | | internal static class NullableReflected<T> where T : struct |
| | | 7980 | | { |
| | | 7981 | | public static readonly Type NullableType = typeof(T?); |
| | | 7982 | | public static readonly MethodInfo ValueGetterMethod = |
| | | 7983 | | NullableType.GetProperty("Value").GetMethod; |
| | | 7984 | | public static readonly MethodInfo HasValueGetterMethod = |
| | | 7985 | | NullableType.GetProperty("HasValue").GetMethod; |
| | | 7986 | | public static readonly FieldInfo ValueField = |
| | | 7987 | | NullableType.GetField("value", BindingFlags.Instance | BindingFlags.NonPublic); |
| | | 7988 | | public static readonly ConstructorInfo Constructor = |
| | | 7989 | | NullableType.GetConstructors()[0]; |
| | | 7990 | | } |
| | | 7991 | | |
| | | 7992 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 7993 | | [MethodImpl((MethodImplOptions)256)] |
| | | 7994 | | internal static MethodInfo GetNullableValueGetterMethod(this Type type) => |
| | | 7995 | | type == typeof(int?) ? NullableReflected<int>.ValueGetterMethod : |
| | | 7996 | | type == typeof(double?) ? NullableReflected<double>.ValueGetterMethod : |
| | | 7997 | | type.GetProperty("Value").GetMethod; |
| | | 7998 | | |
| | | 7999 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 8000 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8001 | | internal static MethodInfo GetNullableHasValueGetterMethod(this Type type) => |
| | | 8002 | | type == typeof(int?) ? NullableReflected<int>.HasValueGetterMethod : |
| | | 8003 | | type == typeof(double?) ? NullableReflected<double>.HasValueGetterMethod : |
| | | 8004 | | type.GetProperty("HasValue").GetMethod; |
| | | 8005 | | |
| | | 8006 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 8007 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8008 | | internal static FieldInfo GetNullableValueUnsafeAkaGetValueOrDefaultMethod(this Type type) => |
| | | 8009 | | type == typeof(int?) ? NullableReflected<int>.ValueField : |
| | | 8010 | | type == typeof(double?) ? NullableReflected<double>.ValueField : |
| | | 8011 | | type.GetField("value", BindingFlags.Instance | BindingFlags.NonPublic); |
| | | 8012 | | |
| | | 8013 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 8014 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8015 | | internal static ConstructorInfo GetNullableConstructor(this Type type) => |
| | | 8016 | | type == typeof(int?) ? NullableReflected<int>.Constructor : |
| | | 8017 | | type == typeof(double?) ? NullableReflected<double>.Constructor : |
| | | 8018 | | type.GetConstructors()[0]; |
| | | 8019 | | |
| | | 8020 | | /// <summary>Finds the implicit or explicit conversion operator inType from the sourceType to targetType, |
| | | 8021 | | /// otherwise returns null</summary> |
| | | 8022 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 8023 | | public static MethodInfo FindConvertOperator(this Type inType, Type sourceType, Type targetType) |
| | | 8024 | | { |
| | | 8025 | | Debug.Assert(!inType.IsNullable(), "Should not be called for the nullable type"); |
| | | 8026 | | Debug.Assert(!inType.IsPrimitive, "Should not be called for the primitive type"); |
| | | 8027 | | Debug.Assert(!inType.IsEnum, "Should not be called for the enum type"); |
| | | 8028 | | |
| | | 8029 | | // note: remember that if inType.IsPrimitive it does contain the explicit or implicit conversion operators a |
| | | 8030 | | if (sourceType == typeof(object) | targetType == typeof(object)) |
| | | 8031 | | return null; |
| | | 8032 | | |
| | | 8033 | | // conversion operators should be declared as static and public |
| | | 8034 | | var methods = inType.GetMethods(BindingFlags.Static | BindingFlags.Public); |
| | | 8035 | | foreach (var m in methods) |
| | | 8036 | | if (m.IsSpecialName && m.ReturnType == targetType) |
| | | 8037 | | { |
| | | 8038 | | var n = m.Name; |
| | | 8039 | | if ((n == "op_Implicit" || n == "op_Explicit") && |
| | | 8040 | | m.GetParameters()[0].ParameterType == sourceType) |
| | | 8041 | | return m; |
| | | 8042 | | } |
| | | 8043 | | |
| | | 8044 | | return null; |
| | | 8045 | | } |
| | | 8046 | | |
| | | 8047 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 8048 | | internal static ConstructorInfo FindSingleParamConstructor(this Type type, Type paramType) |
| | | 8049 | | { |
| | | 8050 | | var ctors = type.GetConstructors(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic); |
| | | 8051 | | for (var i = 0; i < ctors.Length; i++) |
| | | 8052 | | { |
| | | 8053 | | var ctor = ctors[i]; |
| | | 8054 | | var parameters = ctor.GetParameters(); |
| | | 8055 | | if (parameters.Length == 1 && parameters[0].ParameterType == paramType) |
| | | 8056 | | return ctor; |
| | | 8057 | | } |
| | | 8058 | | |
| | | 8059 | | return null; |
| | | 8060 | | } |
| | | 8061 | | |
| | | 8062 | | public static T[] AsArray<T>(this IEnumerable<T> xs) |
| | | 8063 | | { |
| | | 8064 | | if (xs is T[] array) |
| | | 8065 | | return array; |
| | | 8066 | | return xs == null ? null : xs.ToArray(); |
| | | 8067 | | } |
| | | 8068 | | |
| | | 8069 | | internal static IList<T> AsList<T>(this IEnumerable<T> source) => |
| | | 8070 | | source == null ? Empty<T>() : source as IList<T> ?? source.ToList(); |
| | | 8071 | | |
| | | 8072 | | internal static bool TryGetIndex<T, TEq>(this IList<T> items, out int index, T item, int count, |
| | | 8073 | | TEq eq = default) where TEq : struct, IEq<T> |
| | | 8074 | | { |
| | | 8075 | | for (var i = 0; (uint)i < count; ++i) |
| | | 8076 | | if (eq.Equals(items[i], item)) |
| | | 8077 | | { |
| | | 8078 | | index = i; |
| | | 8079 | | return true; |
| | | 8080 | | } |
| | | 8081 | | index = -1; |
| | | 8082 | | return false; |
| | | 8083 | | } |
| | | 8084 | | |
| | | 8085 | | private static class EmptyArray<T> |
| | | 8086 | | { |
| | | 8087 | | public static readonly T[] Value = new T[0]; |
| | | 8088 | | } |
| | | 8089 | | |
| | | 8090 | | public static T[] Empty<T>() => EmptyArray<T>.Value; |
| | | 8091 | | |
| | | 8092 | | public static Type[] GetParamTypes(IReadOnlyList<PE> paramExprs) |
| | | 8093 | | { |
| | | 8094 | | if (paramExprs == null) |
| | | 8095 | | return Empty<Type>(); |
| | | 8096 | | |
| | | 8097 | | var count = paramExprs.Count; |
| | | 8098 | | if (count == 0) |
| | | 8099 | | return Empty<Type>(); |
| | | 8100 | | |
| | | 8101 | | if (count == 1) |
| | | 8102 | | return new[] { paramExprs[0].IsByRef ? paramExprs[0].Type.MakeByRefType() : paramExprs[0].Type }; |
| | | 8103 | | |
| | | 8104 | | var paramTypes = new Type[count]; |
| | | 8105 | | for (var i = 0; i < paramTypes.Length; i++) |
| | | 8106 | | { |
| | | 8107 | | var parameterExpr = paramExprs[i]; |
| | | 8108 | | paramTypes[i] = parameterExpr.IsByRef ? parameterExpr.Type.MakeByRefType() : parameterExpr.Type; |
| | | 8109 | | } |
| | | 8110 | | |
| | | 8111 | | return paramTypes; |
| | | 8112 | | } |
| | | 8113 | | |
| | | 8114 | | public static Type GetFuncOrActionType(Type returnType) => |
| | | 8115 | | returnType == typeof(void) ? typeof(Action) : typeof(Func<>).MakeGenericType(returnType); |
| | | 8116 | | |
| | | 8117 | | public static Type GetFuncOrActionType(Type p, Type returnType) => |
| | | 8118 | | returnType == typeof(void) ? typeof(Action<>).MakeGenericType(p) : typeof(Func<,>).MakeGenericType(p, return |
| | | 8119 | | |
| | | 8120 | | public static Type GetFuncOrActionType(Type p0, Type p1, Type returnType) => |
| | | 8121 | | returnType == typeof(void) ? typeof(Action<,>).MakeGenericType(p0, p1) : typeof(Func<,,>).MakeGenericType(p0 |
| | | 8122 | | |
| | | 8123 | | public static Type GetFuncOrActionType(Type p0, Type p1, Type p2, Type returnType) => |
| | | 8124 | | returnType == typeof(void) ? typeof(Action<,,>).MakeGenericType(p0, p1, p2) : typeof(Func<,,,>).MakeGenericT |
| | | 8125 | | |
| | | 8126 | | public static Type GetFuncOrActionType(Type p0, Type p1, Type p2, Type p3, Type returnType) => |
| | | 8127 | | returnType == typeof(void) ? typeof(Action<,,,>).MakeGenericType(p0, p1, p2, p3) : typeof(Func<,,,,>).MakeGe |
| | | 8128 | | |
| | | 8129 | | public static Type GetFuncOrActionType(Type p0, Type p1, Type p2, Type p3, Type p4, Type returnType) => |
| | | 8130 | | returnType == typeof(void) ? typeof(Action<,,,,>).MakeGenericType(p0, p1, p2, p3, p4) : typeof(Func<,,,,,>). |
| | | 8131 | | |
| | | 8132 | | public static Type GetFuncOrActionType(Type p0, Type p1, Type p2, Type p3, Type p4, Type p5, Type returnType) => |
| | | 8133 | | returnType == typeof(void) ? typeof(Action<,,,,,>).MakeGenericType(p0, p1, p2, p3, p4, p5) : typeof(Func<,,, |
| | | 8134 | | |
| | | 8135 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 8136 | | public static Type GetFuncOrActionType(Type[] paramTypes, Type returnType) |
| | | 8137 | | { |
| | | 8138 | | if (returnType == typeof(void)) |
| | | 8139 | | { |
| | | 8140 | | if (paramTypes.Length == 0) |
| | | 8141 | | return typeof(Action); |
| | | 8142 | | |
| | | 8143 | | return GetAction(paramTypes.Length).MakeGenericType(paramTypes); |
| | | 8144 | | } |
| | | 8145 | | |
| | | 8146 | | Type funcType = GetFunc(paramTypes.Length); |
| | | 8147 | | Type[] typeParams = new Type[paramTypes.Length + 1]; // todo: @perf could we Rent the array? |
| | | 8148 | | Array.Copy(paramTypes, typeParams, paramTypes.Length); |
| | | 8149 | | typeParams[paramTypes.Length] = returnType; |
| | | 8150 | | return funcType.MakeGenericType(typeParams); |
| | | 8151 | | |
| | | 8152 | | static Type GetAction(int length) |
| | | 8153 | | { |
| | | 8154 | | return length switch |
| | | 8155 | | { |
| | | 8156 | | 1 => typeof(Action<>), |
| | | 8157 | | 2 => typeof(Action<,>), |
| | | 8158 | | 3 => typeof(Action<,,>), |
| | | 8159 | | 4 => typeof(Action<,,,>), |
| | | 8160 | | 5 => typeof(Action<,,,,>), |
| | | 8161 | | 6 => typeof(Action<,,,,,>), |
| | | 8162 | | 7 => typeof(Action<,,,,,,>), |
| | | 8163 | | 8 => typeof(Action<,,,,,,,>), |
| | | 8164 | | 9 => typeof(Action<,,,,,,,,>), |
| | | 8165 | | 10 => typeof(Action<,,,,,,,,,>), |
| | | 8166 | | 11 => typeof(Action<,,,,,,,,,,>), |
| | | 8167 | | 12 => typeof(Action<,,,,,,,,,,,>), |
| | | 8168 | | 13 => typeof(Action<,,,,,,,,,,,,>), |
| | | 8169 | | 14 => typeof(Action<,,,,,,,,,,,,,>), |
| | | 8170 | | 15 => typeof(Action<,,,,,,,,,,,,,,>), |
| | | 8171 | | 16 => typeof(Action<,,,,,,,,,,,,,,,>), |
| | | 8172 | | _ => throw new NotSupportedException($"Action with so many ({length}) parameters is not supported!") |
| | | 8173 | | }; |
| | | 8174 | | } |
| | | 8175 | | |
| | | 8176 | | static Type GetFunc(int length) |
| | | 8177 | | { |
| | | 8178 | | return length switch |
| | | 8179 | | { |
| | | 8180 | | 0 => typeof(Func<>), |
| | | 8181 | | 1 => typeof(Func<,>), |
| | | 8182 | | 2 => typeof(Func<,,>), |
| | | 8183 | | 3 => typeof(Func<,,,>), |
| | | 8184 | | 4 => typeof(Func<,,,,>), |
| | | 8185 | | 5 => typeof(Func<,,,,,>), |
| | | 8186 | | 6 => typeof(Func<,,,,,,>), |
| | | 8187 | | 7 => typeof(Func<,,,,,,,>), |
| | | 8188 | | 8 => typeof(Func<,,,,,,,,>), |
| | | 8189 | | 9 => typeof(Func<,,,,,,,,,>), |
| | | 8190 | | 10 => typeof(Func<,,,,,,,,,,>), |
| | | 8191 | | 11 => typeof(Func<,,,,,,,,,,,>), |
| | | 8192 | | 12 => typeof(Func<,,,,,,,,,,,,>), |
| | | 8193 | | 13 => typeof(Func<,,,,,,,,,,,,,>), |
| | | 8194 | | 14 => typeof(Func<,,,,,,,,,,,,,,>), |
| | | 8195 | | 15 => typeof(Func<,,,,,,,,,,,,,,,>), |
| | | 8196 | | 16 => typeof(Func<,,,,,,,,,,,,,,,,>), |
| | | 8197 | | _ => throw new NotSupportedException($"Func with so many ({length}) parameters is not supported!") |
| | | 8198 | | }; |
| | | 8199 | | } |
| | | 8200 | | } |
| | | 8201 | | |
| | | 8202 | | public static T GetFirst<T>(this IEnumerable<T> source) |
| | | 8203 | | { |
| | | 8204 | | // This is pretty much Linq.FirstOrDefault except it does not need to check |
| | | 8205 | | // if source is IPartition<T> (but should it?) |
| | | 8206 | | |
| | | 8207 | | if (source is IList<T> list) |
| | | 8208 | | return list.Count == 0 ? default : list[0]; |
| | | 8209 | | var items = source.GetEnumerator(); |
| | | 8210 | | return items.MoveNext() ? items.Current : default; |
| | | 8211 | | } |
| | | 8212 | | |
| | | 8213 | | public static T GetFirst<T>(this T[] source) => source.Length == 0 ? default : source[0]; |
| | | 8214 | | } |
| | | 8215 | | |
| | | 8216 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 8217 | | internal static class ILGeneratorTools |
| | | 8218 | | { |
| | | 8219 | | /// <summary>Configuration option to disable the pooling</summary> |
| | | 8220 | | public static bool DisableILGeneratorPooling; |
| | | 8221 | | /// <summary>Configuration option to disable the ILGenerator Emit debug output</summary> |
| | | 8222 | | public static bool DisableDemit; |
| | | 8223 | | |
| | | 8224 | | #if DEMIT |
| | | 8225 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8226 | | public static void Demit(this ILGenerator il, OpCode opcode, [CallerMemberName] string emitterName = "", [Caller |
| | | 8227 | | { |
| | | 8228 | | il.Emit(opcode); |
| | | 8229 | | if (DisableDemit) return; |
| | | 8230 | | Debug.WriteLine($"{opcode} -- {emitterName}:{emitterLine}"); |
| | | 8231 | | } |
| | | 8232 | | |
| | | 8233 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8234 | | public static void Demit(this ILGenerator il, OpCode opcode, Type type, [CallerMemberName] string emitterName = |
| | | 8235 | | { |
| | | 8236 | | il.Emit(opcode, type); |
| | | 8237 | | if (DisableDemit) return; |
| | | 8238 | | Debug.WriteLine($"{opcode} {type.ToCode(stripNamespace: true)} -- {emitterName}:{emitterLine}"); |
| | | 8239 | | } |
| | | 8240 | | |
| | | 8241 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8242 | | public static void Demit(this ILGenerator il, OpCode opcode, FieldInfo value, [CallerMemberName] string emitterN |
| | | 8243 | | { |
| | | 8244 | | il.Emit(opcode, value); |
| | | 8245 | | if (DisableDemit) return; |
| | | 8246 | | |
| | | 8247 | | var declType = value.DeclaringType?.ToCode(stripNamespace: true) ?? ""; |
| | | 8248 | | var fieldType = value.FieldType.ToCode(stripNamespace: true); |
| | | 8249 | | Debug.WriteLine($"{opcode} {fieldType} {declType}.{value.Name} -- {emitterName}:{emitterLine}"); |
| | | 8250 | | } |
| | | 8251 | | |
| | | 8252 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8253 | | public static void Demit(this ILGenerator il, OpCode opcode, MethodInfo value, [CallerMemberName] string emitter |
| | | 8254 | | { |
| | | 8255 | | il.Emit(opcode, value); |
| | | 8256 | | if (DisableDemit) return; |
| | | 8257 | | |
| | | 8258 | | var declType = value.DeclaringType?.ToCode(stripNamespace: true) ?? ""; |
| | | 8259 | | var retType = value.ReturnType.ToCode(stripNamespace: true); |
| | | 8260 | | var signature = value.ToString(); |
| | | 8261 | | var paramStart = signature.IndexOf('('); |
| | | 8262 | | var paramsInParens = paramStart == -1 ? "()" : signature.Substring(paramStart); |
| | | 8263 | | Debug.WriteLine($"{opcode} {retType} {declType}.{value.Name}{paramsInParens} -- {emitterName}:{emitterLine} |
| | | 8264 | | } |
| | | 8265 | | |
| | | 8266 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8267 | | public static void Demit(this ILGenerator il, OpCode opcode, ConstructorInfo value, [CallerMemberName] string em |
| | | 8268 | | { |
| | | 8269 | | il.Emit(opcode, value); |
| | | 8270 | | if (DisableDemit) return; |
| | | 8271 | | |
| | | 8272 | | var declType = value.DeclaringType?.ToCode(stripNamespace: true) ?? ""; |
| | | 8273 | | var signature = value.ToString(); |
| | | 8274 | | var paramStart = signature.IndexOf('('); |
| | | 8275 | | var paramsInParens = paramStart == -1 ? "()" : signature.Substring(paramStart); |
| | | 8276 | | Debug.WriteLine($"{opcode} {declType}{paramsInParens} -- {emitterName}:{emitterLine}"); |
| | | 8277 | | } |
| | | 8278 | | |
| | | 8279 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8280 | | public static void Demit(this ILGenerator il, OpCode opcode, Label value, |
| | | 8281 | | [CallerArgumentExpression("value")] string valueName = null, [CallerMemberName] string emitterName = null, [ |
| | | 8282 | | { |
| | | 8283 | | il.Emit(opcode, value); |
| | | 8284 | | if (DisableDemit) return; |
| | | 8285 | | Debug.WriteLine($"{opcode} {valueName ?? value.ToString()} -- {emitterName}:{emitterLine}"); |
| | | 8286 | | } |
| | | 8287 | | |
| | | 8288 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8289 | | public static void DmarkLabel(this ILGenerator il, Label value, |
| | | 8290 | | [CallerArgumentExpression("value")] string valueName = null, [CallerMemberName] string emitterName = null, [ |
| | | 8291 | | { |
| | | 8292 | | il.MarkLabel(value); |
| | | 8293 | | if (DisableDemit) return; |
| | | 8294 | | Debug.WriteLine($"{valueName ?? value.ToString()} -- {emitterName}:{emitterLine}: "); |
| | | 8295 | | } |
| | | 8296 | | |
| | | 8297 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8298 | | public static void Demit(this ILGenerator il, OpCode opcode, byte value, [CallerMemberName] string emitterName = |
| | | 8299 | | { |
| | | 8300 | | il.Emit(opcode, value); |
| | | 8301 | | if (DisableDemit) return; |
| | | 8302 | | Debug.WriteLine($"{opcode} {value} -- {emitterName}:{emitterLine}"); |
| | | 8303 | | } |
| | | 8304 | | |
| | | 8305 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8306 | | public static void Demit(this ILGenerator il, OpCode opcode, sbyte value, [CallerMemberName] string emitterName |
| | | 8307 | | { |
| | | 8308 | | il.Emit(opcode, value); |
| | | 8309 | | if (DisableDemit) return; |
| | | 8310 | | Debug.WriteLine($"{opcode} {value} -- {emitterName}:{emitterLine}"); |
| | | 8311 | | } |
| | | 8312 | | |
| | | 8313 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8314 | | public static void Demit(this ILGenerator il, OpCode opcode, short value, [CallerMemberName] string emitterName |
| | | 8315 | | { |
| | | 8316 | | il.Emit(opcode, value); |
| | | 8317 | | if (DisableDemit) return; |
| | | 8318 | | Debug.WriteLine($"{opcode} {value} -- {emitterName}:{emitterLine}"); |
| | | 8319 | | } |
| | | 8320 | | |
| | | 8321 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8322 | | public static void Demit(this ILGenerator il, OpCode opcode, int value, [CallerMemberName] string emitterName = |
| | | 8323 | | { |
| | | 8324 | | il.Emit(opcode, value); |
| | | 8325 | | if (DisableDemit) return; |
| | | 8326 | | Debug.WriteLine($"{opcode} {value} -- {emitterName}:{emitterLine}"); |
| | | 8327 | | } |
| | | 8328 | | |
| | | 8329 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8330 | | public static void Demit(this ILGenerator il, OpCode opcode, long value, [CallerMemberName] string emitterName = |
| | | 8331 | | { |
| | | 8332 | | il.Emit(opcode, value); |
| | | 8333 | | if (DisableDemit) return; |
| | | 8334 | | Debug.WriteLine($"{opcode} {value} -- {emitterName}:{emitterLine}"); |
| | | 8335 | | } |
| | | 8336 | | |
| | | 8337 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8338 | | public static void Demit(this ILGenerator il, OpCode opcode, float value, [CallerMemberName] string emitterName |
| | | 8339 | | { |
| | | 8340 | | il.Emit(opcode, value); |
| | | 8341 | | if (DisableDemit) return; |
| | | 8342 | | Debug.WriteLine($"{opcode} {value} -- {emitterName}:{emitterLine}"); |
| | | 8343 | | } |
| | | 8344 | | |
| | | 8345 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8346 | | public static void Demit(this ILGenerator il, OpCode opcode, double value, [CallerMemberName] string emitterName |
| | | 8347 | | { |
| | | 8348 | | il.Emit(opcode, value); |
| | | 8349 | | if (DisableDemit) return; |
| | | 8350 | | Debug.WriteLine($"{opcode} {value} -- {emitterName}:{emitterLine}"); |
| | | 8351 | | } |
| | | 8352 | | |
| | | 8353 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8354 | | public static void Demit(this ILGenerator il, string value, OpCode opcode, [CallerMemberName] string emitterName |
| | | 8355 | | { |
| | | 8356 | | il.Emit(opcode, value); |
| | | 8357 | | if (DisableDemit) return; |
| | | 8358 | | Debug.WriteLine($"{opcode} {value} -- {emitterName}:{emitterLine}"); |
| | | 8359 | | } |
| | | 8360 | | |
| | | 8361 | | #else // not DEMIT :) |
| | | 8362 | | |
| | | 8363 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8364 | | public static void Demit(this ILGenerator il, OpCode opcode) => il.Emit(opcode); |
| | | 8365 | | |
| | | 8366 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8367 | | public static void Demit(this ILGenerator il, OpCode opcode, Type value) => il.Emit(opcode, value); |
| | | 8368 | | |
| | | 8369 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8370 | | public static void Demit(this ILGenerator il, OpCode opcode, FieldInfo value) => il.Emit(opcode, value); |
| | | 8371 | | |
| | | 8372 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8373 | | public static void Demit(this ILGenerator il, OpCode opcode, MethodInfo value) => il.Emit(opcode, value); |
| | | 8374 | | |
| | | 8375 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8376 | | public static void Demit(this ILGenerator il, OpCode opcode, ConstructorInfo value) => il.Emit(opcode, value); |
| | | 8377 | | |
| | | 8378 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8379 | | public static void Demit(this ILGenerator il, OpCode opcode, Label value) => il.Emit(opcode, value); |
| | | 8380 | | |
| | | 8381 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8382 | | public static void DmarkLabel(this ILGenerator il, Label value) => il.MarkLabel(value); |
| | | 8383 | | |
| | | 8384 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8385 | | public static void Demit(this ILGenerator il, OpCode opcode, byte value) => il.Emit(opcode, value); |
| | | 8386 | | |
| | | 8387 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8388 | | public static void Demit(this ILGenerator il, OpCode opcode, sbyte value) => il.Emit(opcode, value); |
| | | 8389 | | |
| | | 8390 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8391 | | public static void Demit(this ILGenerator il, OpCode opcode, short value) => il.Emit(opcode, value); |
| | | 8392 | | |
| | | 8393 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8394 | | public static void Demit(this ILGenerator il, OpCode opcode, int value) => il.Emit(opcode, value); |
| | | 8395 | | |
| | | 8396 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8397 | | public static void Demit(this ILGenerator il, OpCode opcode, long value) => il.Emit(opcode, value); |
| | | 8398 | | |
| | | 8399 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8400 | | public static void Demit(this ILGenerator il, OpCode opcode, float value) => il.Emit(opcode, value); |
| | | 8401 | | |
| | | 8402 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8403 | | public static void Demit(this ILGenerator il, OpCode opcode, double value) => il.Emit(opcode, value); |
| | | 8404 | | |
| | | 8405 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8406 | | public static void Demit(this ILGenerator il, string value, OpCode opcode) => il.Emit(opcode, value); |
| | | 8407 | | #endif |
| | | 8408 | | } |
| | | 8409 | | |
| | | 8410 | | /// <summary>Reflecting the internal methods to access the more performant for defining the local variable</summary> |
| | | 8411 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 8412 | | internal static class DynamicMethodHacks |
| | | 8413 | | { |
| | | 8414 | | [ThreadStatic] |
| | | 8415 | | internal static ILGenerator _pooledILGenerator; |
| | | 8416 | | |
| | | 8417 | | #if NET6_0_OR_GREATER |
| | | 8418 | | /// <summary>Get new or pool and configure existing DynamicILGenerator</summary> |
| | | 8419 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8420 | | public static ILGenerator RentPooledOrNewILGenerator(DynamicMethod dynMethod, Type returnType, Type[] paramTypes |
| | | 8421 | | // the default ILGenerator size is 64 in .NET 8.0+ |
| | | 8422 | | int newStreamSize = 64) |
| | | 8423 | | { |
| | | 8424 | | var reuseILGenerator = DynamicMethodHacks.ReuseDynamicILGenerator; |
| | | 8425 | | if (reuseILGenerator != null) |
| | | 8426 | | { |
| | | 8427 | | var pooledIL = _pooledILGenerator; |
| | | 8428 | | _pooledILGenerator = null; |
| | | 8429 | | if (pooledIL != null) |
| | | 8430 | | { |
| | | 8431 | | reuseILGenerator(dynMethod, pooledIL, returnType, paramTypes); |
| | | 8432 | | return pooledIL; |
| | | 8433 | | } |
| | | 8434 | | else |
| | | 8435 | | { |
| | | 8436 | | Debug.WriteLine("Unexpected: using a New ILGenerator instead of the pooled one"); |
| | | 8437 | | } |
| | | 8438 | | } |
| | | 8439 | | return dynMethod.GetILGenerator(newStreamSize); |
| | | 8440 | | } |
| | | 8441 | | |
| | | 8442 | | /// <summary>Should be called only after call to DynamicMethod.CreateDelegate</summary> |
| | | 8443 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8444 | | public static void FreePooledILGenerator(DynamicMethod dynMethod, ILGenerator il) |
| | | 8445 | | { |
| | | 8446 | | if (DynamicMethodHacks.ReuseDynamicILGenerator != null) |
| | | 8447 | | _pooledILGenerator = il; |
| | | 8448 | | } |
| | | 8449 | | #else |
| | | 8450 | | /// <summary>Get new or pool and configure existing DynamicILGenerator</summary> |
| | | 8451 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8452 | | public static ILGenerator RentPooledOrNewILGenerator(DynamicMethod dynMethod, Type returnType, Type[] paramTypes |
| | | 8453 | | int newStreamSize = 64) => |
| | | 8454 | | dynMethod.GetILGenerator(newStreamSize); |
| | | 8455 | | |
| | | 8456 | | /// <summary>Should be called only after call to DynamicMethod.CreateDelegate</summary> |
| | | 8457 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8458 | | public static void FreePooledILGenerator(DynamicMethod dynMethod, ILGenerator il) { /* do nothing */ } |
| | | 8459 | | #endif |
| | | 8460 | | |
| | | 8461 | | internal static readonly Func<ILGenerator, Type, int> GetNextLocalVarLocation; |
| | | 8462 | | |
| | | 8463 | | internal static int PostInc(ref int i) => i++; |
| | | 8464 | | |
| | | 8465 | | internal static Action<DynamicMethod, ILGenerator, Type, Type[]> ReuseDynamicILGenerator; |
| | | 8466 | | |
| | | 8467 | | |
| | | 8468 | | [ThreadStatic] |
| | | 8469 | | internal static SignatureHelper _pooledSignatureHelper; |
| | | 8470 | | |
| | | 8471 | | |
| | | 8472 | | internal static FieldInfo ILGeneratorField; |
| | | 8473 | | internal static Type DynamicILGeneratorType; |
| | | 8474 | | |
| | | 8475 | | static DynamicMethodHacks() |
| | | 8476 | | { |
| | | 8477 | | const BindingFlags instanceNonPublic = BindingFlags.Instance | BindingFlags.NonPublic; |
| | | 8478 | | const BindingFlags instancePublic = BindingFlags.Instance | BindingFlags.Public; |
| | | 8479 | | const BindingFlags staticNonPublic = BindingFlags.Static | BindingFlags.NonPublic; |
| | | 8480 | | const BindingFlags staticPublic = BindingFlags.Static | BindingFlags.Public; |
| | | 8481 | | |
| | | 8482 | | ILGeneratorField = typeof(DynamicMethod).GetField("_ilGenerator", instanceNonPublic); |
| | | 8483 | | if (ILGeneratorField == null) |
| | | 8484 | | return; // nothing to do here |
| | | 8485 | | |
| | | 8486 | | DynamicILGeneratorType = ILGeneratorField.FieldType; |
| | | 8487 | | |
| | | 8488 | | // Avoid demit polluting the output of the the initialization phase |
| | | 8489 | | var prevDemitValue = ILGeneratorTools.DisableDemit; |
| | | 8490 | | ILGeneratorTools.DisableDemit = true; |
| | | 8491 | | |
| | | 8492 | | if (!ILGeneratorTools.DisableILGeneratorPooling) |
| | | 8493 | | { |
| | | 8494 | | // ## 1. Reuse the DynamicILGenerator |
| | | 8495 | | // |
| | | 8496 | | // Reference code - NET. v8, v9: |
| | | 8497 | | /* |
| | | 8498 | | public ILGenerator GetILGenerator(int streamSize) |
| | | 8499 | | { |
| | | 8500 | | if (_ilGenerator == null) |
| | | 8501 | | { |
| | | 8502 | | byte[] methodSignature = SignatureHelper.GetMethodSigHelper( |
| | | 8503 | | null, CallingConvention, ReturnType, null, null, _parameterTypes, null, null).GetSignatu |
| | | 8504 | | _ilGenerator = new DynamicILGenerator(this, methodSignature, streamSize); |
| | | 8505 | | } |
| | | 8506 | | return _ilGenerator; |
| | | 8507 | | } |
| | | 8508 | | |
| | | 8509 | | internal sealed class DynamicScope |
| | | 8510 | | { |
| | | 8511 | | internal readonly List<object?> m_tokens = new List<object?> { null }; |
| | | 8512 | | public int GetTokenFor(byte[] signature) |
| | | 8513 | | { |
| | | 8514 | | m_tokens.Add(signature); |
| | | 8515 | | return m_tokens.Count - 1 | (int)MetadataTokenType.Signature; |
| | | 8516 | | } |
| | | 8517 | | } |
| | | 8518 | | |
| | | 8519 | | internal DynamicScope m_scope; |
| | | 8520 | | private readonly int m_methodSigToken; |
| | | 8521 | | |
| | | 8522 | | public DynamicILGenerator( |
| | | 8523 | | DynamicMethod method, |
| | | 8524 | | byte[] methodSignature, |
| | | 8525 | | int streamSize) |
| | | 8526 | | { |
| | | 8527 | | m_scope = new DynamicScope(); |
| | | 8528 | | m_methodSigToken = m_scope.GetTokenFor(methodSignature); |
| | | 8529 | | |
| | | 8530 | | m_ScopeTree = new ScopeTree(); |
| | | 8531 | | m_ILStream = new byte[Math.Max(size, DefaultSize)]; |
| | | 8532 | | |
| | | 8533 | | m_localSignature = SignatureHelper.GetLocalVarSigHelper((method as RuntimeMethodBuilder)?.GetTyp |
| | | 8534 | | m_methodBuilder = method; // set to the new DynamicMethod |
| | | 8535 | | } |
| | | 8536 | | */ |
| | | 8537 | | var m_ScopeTreeField = DynamicILGeneratorType.GetField("m_ScopeTree", instanceNonPublic); |
| | | 8538 | | if (m_ScopeTreeField == null) |
| | | 8539 | | goto endOfReuse; |
| | | 8540 | | |
| | | 8541 | | var ScopeTreeCtor = m_ScopeTreeField.FieldType.GetConstructor(instanceNonPublic, null, Type.EmptyTypes, |
| | | 8542 | | if (ScopeTreeCtor == null) |
| | | 8543 | | goto endOfReuse; |
| | | 8544 | | |
| | | 8545 | | var DynamicILGeneratorScopeField = DynamicILGeneratorType.GetField("m_scope", instanceNonPublic); |
| | | 8546 | | if (DynamicILGeneratorScopeField == null) |
| | | 8547 | | goto endOfReuse; |
| | | 8548 | | |
| | | 8549 | | var DynamicILGeneratorScopeType = DynamicILGeneratorScopeField.FieldType; |
| | | 8550 | | var DynamicScopeTokensField = DynamicILGeneratorScopeType.GetField("m_tokens", instanceNonPublic); |
| | | 8551 | | if (DynamicScopeTokensField == null) |
| | | 8552 | | goto endOfReuse; |
| | | 8553 | | |
| | | 8554 | | var DynamicScopeTokensItem = DynamicScopeTokensField.FieldType.GetProperty("Item"); |
| | | 8555 | | Debug.Assert(DynamicScopeTokensItem != null, "DynamicScopeTokens.Item should not be null"); |
| | | 8556 | | |
| | | 8557 | | var getMethodSigHelperParams = ExpressionCompiler.RentPooledOrNewParamTypes(typeof(Module), typeof(Type) |
| | | 8558 | | var GetMethodSigHelperMethod = typeof(SignatureHelper).GetMethod("GetMethodSigHelper", staticPublic, nul |
| | | 8559 | | ExpressionCompiler.FreePooledParamTypes(getMethodSigHelperParams); |
| | | 8560 | | if (GetMethodSigHelperMethod == null) |
| | | 8561 | | goto endOfReuse; |
| | | 8562 | | |
| | | 8563 | | var GetLocalVarSigHelperMethod = typeof(SignatureHelper).GetMethod("GetLocalVarSigHelper", staticPublic, |
| | | 8564 | | if (GetLocalVarSigHelperMethod == null) |
| | | 8565 | | goto endOfReuse; |
| | | 8566 | | |
| | | 8567 | | var getSignatureParams = ExpressionCompiler.RentPooledOrNewParamTypes(typeof(bool)); |
| | | 8568 | | var SignatureHelper_GetSignatureMethod = typeof(SignatureHelper).GetMethod("GetSignature", instanceNonPu |
| | | 8569 | | ExpressionCompiler.FreePooledParamTypes(getSignatureParams); |
| | | 8570 | | if (SignatureHelper_GetSignatureMethod == null) |
| | | 8571 | | goto endOfReuse; |
| | | 8572 | | |
| | | 8573 | | var getTokenForParams = ExpressionCompiler.RentPooledOrNewParamTypes(typeof(byte[])); |
| | | 8574 | | var GetTokenForMethod = DynamicILGeneratorScopeType.GetMethod("GetTokenFor", instancePublic, null, getTo |
| | | 8575 | | ExpressionCompiler.FreePooledParamTypes(getTokenForParams); |
| | | 8576 | | if (GetTokenForMethod == null) |
| | | 8577 | | goto endOfReuse; |
| | | 8578 | | |
| | | 8579 | | var MethodSigTokenField = DynamicILGeneratorType.GetField("m_methodSigToken", instanceNonPublic); |
| | | 8580 | | if (MethodSigTokenField == null) |
| | | 8581 | | goto endOfReuse; |
| | | 8582 | | |
| | | 8583 | | var dynMethodParamTypes = ExpressionCompiler.RentPooledOrNewParamTypes( |
| | | 8584 | | typeof(ExpressionCompiler.ArrayClosure), typeof(DynamicMethod), typeof(ILGenerator), typeof(Type |
| | | 8585 | | |
| | | 8586 | | var dynMethod = new DynamicMethod(string.Empty, typeof(void), dynMethodParamTypes, typeof(ExpressionComp |
| | | 8587 | | |
| | | 8588 | | var il = dynMethod.GetILGenerator(512); // precalculated size to avoid waste |
| | | 8589 | | |
| | | 8590 | | var baseFields = DynamicILGeneratorType.BaseType.GetFields(BindingFlags.Instance | BindingFlags.Public | |
| | | 8591 | | foreach (var field in baseFields) |
| | | 8592 | | { |
| | | 8593 | | var fieldName = field.Name; |
| | | 8594 | | if (fieldName == "m_localSignature") |
| | | 8595 | | { |
| | | 8596 | | il.Demit(OpCodes.Ldarg_2); |
| | | 8597 | | il.Demit(OpCodes.Call, GetLocalVarSigHelperMethod); |
| | | 8598 | | il.Demit(OpCodes.Stfld, field); |
| | | 8599 | | continue; |
| | | 8600 | | } |
| | | 8601 | | |
| | | 8602 | | // m_ScopeTree = new ScopeTree(); |
| | | 8603 | | if (fieldName == "m_ScopeTree") |
| | | 8604 | | { |
| | | 8605 | | il.Demit(OpCodes.Ldarg_2); |
| | | 8606 | | il.Demit(OpCodes.Newobj, ScopeTreeCtor); |
| | | 8607 | | il.Demit(OpCodes.Stfld, field); |
| | | 8608 | | continue; |
| | | 8609 | | } |
| | | 8610 | | |
| | | 8611 | | // m_methodBuilder = method; // dynamicMethod |
| | | 8612 | | if (fieldName == "m_methodBuilder") |
| | | 8613 | | { |
| | | 8614 | | il.Demit(OpCodes.Ldarg_2); |
| | | 8615 | | il.Demit(OpCodes.Ldarg_1); |
| | | 8616 | | il.Demit(OpCodes.Stfld, field); |
| | | 8617 | | continue; |
| | | 8618 | | } |
| | | 8619 | | |
| | | 8620 | | if (fieldName == "m_ILStream") |
| | | 8621 | | continue; // reuse the previous il stream |
| | | 8622 | | |
| | | 8623 | | il.Demit(OpCodes.Ldarg_2); |
| | | 8624 | | ExpressionCompiler.EmittingVisitor.EmitDefault(il, field.FieldType); |
| | | 8625 | | il.Demit(OpCodes.Stfld, field); |
| | | 8626 | | } |
| | | 8627 | | |
| | | 8628 | | // var scope = new DynamicScope(); |
| | | 8629 | | var dynamicScopeCtor = DynamicILGeneratorScopeType.GetConstructor(Type.EmptyTypes); |
| | | 8630 | | if (dynamicScopeCtor == null) |
| | | 8631 | | goto endOfReuse; |
| | | 8632 | | il.Emit(OpCodes.Newobj, dynamicScopeCtor); |
| | | 8633 | | var scopeVar = il.DeclareLocal(DynamicILGeneratorScopeType).LocalIndex; |
| | | 8634 | | ExpressionCompiler.EmittingVisitor.EmitStoreLocalVariable(il, scopeVar); |
| | | 8635 | | |
| | | 8636 | | /* |
| | | 8637 | | private byte[] m_signature; // todo: @perf keep it, because it would be copied anyway |
| | | 8638 | | private int m_currSig; // index into m_signature buffer for next available byte |
| | | 8639 | | private int m_sizeLoc; // index into m_signature buffer to put m_argCount (will be NO_SIZE_IN_SIG if |
| | | 8640 | | private ModuleBuilder? m_module; |
| | | 8641 | | private bool m_sigDone; |
| | | 8642 | | private int m_argCount; // tracking number of arguments in the signature |
| | | 8643 | | |
| | | 8644 | | internal static SignatureHelper GetMethodSigHelper( |
| | | 8645 | | Module? scope, CallingConventions callingConvention, int cGenericParam, |
| | | 8646 | | Type? returnType, Type[]? requiredReturnTypeCustomModifiers, Type[]? optionalReturnTypeCustomMod |
| | | 8647 | | Type[]? parameterTypes, Type[][]? requiredParameterTypeCustomModifiers, Type[][]? optionalParame |
| | | 8648 | | { |
| | | 8649 | | SignatureHelper sigHelp; |
| | | 8650 | | MdSigCallingConvention intCall; |
| | | 8651 | | |
| | | 8652 | | // not needed, always provided |
| | | 8653 | | returnType ??= typeof(void); |
| | | 8654 | | |
| | | 8655 | | // not needed, always CallingConventions.Standard |
| | | 8656 | | intCall = MdSigCallingConvention.Default; |
| | | 8657 | | if ((callingConvention & CallingConventions.VarArgs) == CallingConventions.VarArgs) |
| | | 8658 | | intCall = MdSigCallingConvention.Vararg; |
| | | 8659 | | |
| | | 8660 | | // not needed, always 0 |
| | | 8661 | | if (cGenericParam > 0) |
| | | 8662 | | { |
| | | 8663 | | intCall |= MdSigCallingConvention.Generic; |
| | | 8664 | | } |
| | | 8665 | | |
| | | 8666 | | // not needed, can be externalized as a const, precalculate the `unchecked((byte)CallingConventi |
| | | 8667 | | const byte Mask = (byte)(CallingConventions.HasThis | CallingConventions.ExplicitThis); |
| | | 8668 | | intCall = (MdSigCallingConvention)((byte)intCall | (unchecked((byte)callingConvention) & Mask)); |
| | | 8669 | | |
| | | 8670 | | sigHelp = new SignatureHelper(scope, intCall, cGenericParam, returnType, |
| | | 8671 | | requiredReturnTypeCustomModifiers, optionalReturnTypeCustomModifiers); |
| | | 8672 | | |
| | | 8673 | | // m_signature = new byte[32]; |
| | | 8674 | | // m_currSig = 0; |
| | | 8675 | | // m_module = mod as ModuleBuilder; |
| | | 8676 | | // m_argCount = 0; |
| | | 8677 | | // m_sigDone = false; |
| | | 8678 | | // m_sizeLoc = NO_SIZE_IN_SIG; |
| | | 8679 | | |
| | | 8680 | | sigHelp.AddArguments(parameterTypes, requiredParameterTypeCustomModifiers, optionalParameterType |
| | | 8681 | | |
| | | 8682 | | return sigHelp; |
| | | 8683 | | } |
| | | 8684 | | */ |
| | | 8685 | | // pseudo code to reuse the pooled SignatureHelper |
| | | 8686 | | /* |
| | | 8687 | | var signatureHelper = _pooledSignatureHelper; |
| | | 8688 | | _pooledSignatureHelper = null; |
| | | 8689 | | if (signatureHelper == null) |
| | | 8690 | | signatureBytes = SignatureHelper.GetMethodSigHelper(null, returnType, paramTypes).GetSignature(true) |
| | | 8691 | | else |
| | | 8692 | | { |
| | | 8693 | | // no need to set, can reuse the previous value |
| | | 8694 | | // m_signature = new byte[32]; |
| | | 8695 | | // signatureHelper.m_module = null; |
| | | 8696 | | signatureHelper.m_currSig = 0; |
| | | 8697 | | signatureHelper.m_argCount = 0; |
| | | 8698 | | signatureHelper.m_sigDone = false; |
| | | 8699 | | signatureHelper.m_sizeLoc = -1; |
| | | 8700 | | signatureHelper.AddOneArgTypeHelper(returnType, null, null); |
| | | 8701 | | signatureHelper.AddArguments(paramTypes, null, null); |
| | | 8702 | | |
| | | 8703 | | var signatureBytes = signatureHelper.GetSignature(true); |
| | | 8704 | | _pooledSignatureHelper = signatureHelper; |
| | | 8705 | | } |
| | | 8706 | | */ |
| | | 8707 | | var sigBytesVar = il.DeclareLocal(typeof(byte[])).LocalIndex; |
| | | 8708 | | |
| | | 8709 | | var pooledSignatureHelperField = typeof(DynamicMethodHacks).GetField(nameof(_pooledSignatureHelper), sta |
| | | 8710 | | Debug.Assert(pooledSignatureHelperField != null, "_pooledSignatureHelper field not found!"); |
| | | 8711 | | |
| | | 8712 | | il.Emit(OpCodes.Ldsfld, pooledSignatureHelperField); |
| | | 8713 | | var sigHelperVar = il.DeclareLocal(typeof(SignatureHelper)).LocalIndex; |
| | | 8714 | | ExpressionCompiler.EmittingVisitor.EmitStoreAndLoadLocalVariable(il, sigHelperVar); // loading it here t |
| | | 8715 | | il.Emit(OpCodes.Ldnull); // set the pooled instance to null |
| | | 8716 | | il.Emit(OpCodes.Stsfld, pooledSignatureHelperField); |
| | | 8717 | | |
| | | 8718 | | var labelSigHelperNull = il.DefineLabel(); |
| | | 8719 | | il.Emit(OpCodes.Brfalse, labelSigHelperNull); |
| | | 8720 | | |
| | | 8721 | | // signatureHelper.m_currSig = 0 |
| | | 8722 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigHelperVar); |
| | | 8723 | | il.Emit(OpCodes.Ldc_I4_0); |
| | | 8724 | | var m_currSig = typeof(SignatureHelper).GetField("m_currSig", instanceNonPublic); |
| | | 8725 | | if (m_currSig == null) |
| | | 8726 | | goto endOfReuse; |
| | | 8727 | | il.Emit(OpCodes.Stfld, m_currSig); |
| | | 8728 | | |
| | | 8729 | | //signatureHelper.m_argCount = 0; |
| | | 8730 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigHelperVar); |
| | | 8731 | | il.Emit(OpCodes.Ldc_I4_0); |
| | | 8732 | | var m_argCount = typeof(SignatureHelper).GetField("m_argCount", instanceNonPublic); |
| | | 8733 | | if (m_argCount == null) |
| | | 8734 | | goto endOfReuse; |
| | | 8735 | | il.Emit(OpCodes.Stfld, m_argCount); |
| | | 8736 | | |
| | | 8737 | | // signatureHelper.m_sigDone = false; |
| | | 8738 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigHelperVar); |
| | | 8739 | | il.Emit(OpCodes.Ldc_I4_0); |
| | | 8740 | | var m_sigDone = typeof(SignatureHelper).GetField("m_sigDone", instanceNonPublic); |
| | | 8741 | | if (m_sigDone == null) |
| | | 8742 | | goto endOfReuse; |
| | | 8743 | | il.Emit(OpCodes.Stfld, m_sigDone); |
| | | 8744 | | |
| | | 8745 | | // signatureHelper.m_sizeLoc = -1; |
| | | 8746 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigHelperVar); |
| | | 8747 | | il.Emit(OpCodes.Ldc_I4_M1); |
| | | 8748 | | var m_sizeLoc = typeof(SignatureHelper).GetField("m_sizeLoc", instanceNonPublic); |
| | | 8749 | | if (m_sizeLoc == null) |
| | | 8750 | | goto endOfReuse; |
| | | 8751 | | il.Emit(OpCodes.Stfld, m_sizeLoc); |
| | | 8752 | | |
| | | 8753 | | // signatureHelper.AddOneArgTypeHelper(returnType, null, null); |
| | | 8754 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigHelperVar); |
| | | 8755 | | il.Emit(OpCodes.Ldarg_3); // load return type |
| | | 8756 | | il.Emit(OpCodes.Ldnull); // load required return type custom modifiers |
| | | 8757 | | il.Emit(OpCodes.Ldnull); // load optional return type custom modifiers |
| | | 8758 | | var addOneArgTypeHelperParams = ExpressionCompiler.RentPooledOrNewParamTypes(typeof(Type), typeof(Type[] |
| | | 8759 | | var AddOneArgTypeHelperMethod = typeof(SignatureHelper).GetMethod("AddOneArgTypeHelper", instanceNonPubl |
| | | 8760 | | ExpressionCompiler.FreePooledParamTypes(addOneArgTypeHelperParams); |
| | | 8761 | | if (AddOneArgTypeHelperMethod == null) |
| | | 8762 | | goto endOfReuse; |
| | | 8763 | | il.Emit(OpCodes.Call, AddOneArgTypeHelperMethod); |
| | | 8764 | | |
| | | 8765 | | // signatureHelper.AddArguments(paramTypes, null, null); |
| | | 8766 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigHelperVar); |
| | | 8767 | | il.Emit(OpCodes.Ldarg_S, 4); // load parameter types arrays |
| | | 8768 | | il.Emit(OpCodes.Ldnull); // load required parameter type custom modifiers |
| | | 8769 | | il.Emit(OpCodes.Ldnull); // load optional parameter type custom modifiers |
| | | 8770 | | |
| | | 8771 | | var addArgumentsParams = ExpressionCompiler.RentPooledOrNewParamTypes(typeof(Type[]), typeof(Type[][]), |
| | | 8772 | | var AddArgumentsMethod = typeof(SignatureHelper).GetMethod("AddArguments", instancePublic, null, addArgu |
| | | 8773 | | ExpressionCompiler.FreePooledParamTypes(addArgumentsParams); |
| | | 8774 | | if (AddArgumentsMethod == null) |
| | | 8775 | | goto endOfReuse; |
| | | 8776 | | il.Emit(OpCodes.Call, AddArgumentsMethod); |
| | | 8777 | | |
| | | 8778 | | // signatureBytes = signatureHelper.GetSignature(true); |
| | | 8779 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigHelperVar); |
| | | 8780 | | il.Emit(OpCodes.Ldc_I4_1); // load true |
| | | 8781 | | il.Emit(OpCodes.Call, SignatureHelper_GetSignatureMethod); |
| | | 8782 | | ExpressionCompiler.EmittingVisitor.EmitStoreLocalVariable(il, sigBytesVar); |
| | | 8783 | | |
| | | 8784 | | // free the signature helper to the pool |
| | | 8785 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigHelperVar); |
| | | 8786 | | il.Emit(OpCodes.Stsfld, pooledSignatureHelperField); |
| | | 8787 | | |
| | | 8788 | | // done |
| | | 8789 | | var labelSigHelperDone = il.DefineLabel(); |
| | | 8790 | | il.Emit(OpCodes.Br, labelSigHelperDone); |
| | | 8791 | | |
| | | 8792 | | // Standard handling: |
| | | 8793 | | // signatureBytes = SignatureHelper.GetMethodSigHelper(null, returnType, paramTypes).GetSignature(true); |
| | | 8794 | | il.MarkLabel(labelSigHelperNull); |
| | | 8795 | | |
| | | 8796 | | il.Emit(OpCodes.Ldnull); // for the module |
| | | 8797 | | il.Emit(OpCodes.Ldarg_3); // load return type |
| | | 8798 | | il.Emit(OpCodes.Ldarg_S, 4); // load parameter types arrays |
| | | 8799 | | il.Emit(OpCodes.Call, GetMethodSigHelperMethod); |
| | | 8800 | | il.Emit(OpCodes.Ldc_I4_1); // load true |
| | | 8801 | | il.Emit(OpCodes.Call, SignatureHelper_GetSignatureMethod); |
| | | 8802 | | ExpressionCompiler.EmittingVisitor.EmitStoreLocalVariable(il, sigBytesVar); |
| | | 8803 | | |
| | | 8804 | | // todo: @perf GetSignature(true) will copy internal byte buffer almost always, see |
| | | 8805 | | /* |
| | | 8806 | | internal byte[] GetSignature(bool appendEndOfSig) |
| | | 8807 | | { |
| | | 8808 | | // Chops the internal signature to the appropriate length. Adds the |
| | | 8809 | | // end token to the signature and marks the signature as finished so that |
| | | 8810 | | // no further tokens can be added. Return the full signature in a trimmed array. |
| | | 8811 | | if (!m_sigDone) |
| | | 8812 | | { |
| | | 8813 | | if (appendEndOfSig) |
| | | 8814 | | AddElementType(CorElementType.ELEMENT_TYPE_END); |
| | | 8815 | | SetNumberOfSignatureElements(true); |
| | | 8816 | | m_sigDone = true; |
| | | 8817 | | } |
| | | 8818 | | |
| | | 8819 | | // This case will only happen if the user got the signature through |
| | | 8820 | | // InternalGetSignature first and then called GetSignature. |
| | | 8821 | | if (m_signature.Length > m_currSig) |
| | | 8822 | | { |
| | | 8823 | | byte[] temp = new byte[m_currSig]; |
| | | 8824 | | Array.Copy(m_signature, temp, m_currSig); |
| | | 8825 | | m_signature = temp; |
| | | 8826 | | } |
| | | 8827 | | |
| | | 8828 | | return m_signature; |
| | | 8829 | | } |
| | | 8830 | | */ |
| | | 8831 | | |
| | | 8832 | | il.MarkLabel(labelSigHelperDone); |
| | | 8833 | | |
| | | 8834 | | // m_methodSigToken = scope.GetTokenFor(methodSignature); |
| | | 8835 | | il.Emit(OpCodes.Ldarg_2); |
| | | 8836 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, scopeVar); |
| | | 8837 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, sigBytesVar); |
| | | 8838 | | il.Emit(OpCodes.Call, GetTokenForMethod); |
| | | 8839 | | il.Emit(OpCodes.Stfld, MethodSigTokenField); |
| | | 8840 | | |
| | | 8841 | | // m_scope = scope; |
| | | 8842 | | il.Emit(OpCodes.Ldarg_2); |
| | | 8843 | | ExpressionCompiler.EmittingVisitor.EmitLoadLocalVariable(il, scopeVar); |
| | | 8844 | | il.Emit(OpCodes.Stfld, DynamicILGeneratorScopeField); |
| | | 8845 | | |
| | | 8846 | | // store the reused ILGenerator to |
| | | 8847 | | il.Emit(OpCodes.Ldarg_1); |
| | | 8848 | | il.Emit(OpCodes.Ldarg_2); |
| | | 8849 | | il.Emit(OpCodes.Stfld, ILGeneratorField); |
| | | 8850 | | |
| | | 8851 | | il.Emit(OpCodes.Ret); |
| | | 8852 | | |
| | | 8853 | | ReuseDynamicILGenerator = (Action<DynamicMethod, ILGenerator, Type, Type[]>) |
| | | 8854 | | dynMethod.CreateDelegate(typeof(Action<DynamicMethod, ILGenerator, Type, Type[]>), ExpressionCompile |
| | | 8855 | | |
| | | 8856 | | // Put the first used ILGenerator into the pool, let's not waste it from te get go |
| | | 8857 | | _pooledILGenerator = il; |
| | | 8858 | | |
| | | 8859 | | ExpressionCompiler.FreePooledParamTypes(dynMethodParamTypes); |
| | | 8860 | | endOfReuse:; |
| | | 8861 | | } |
| | | 8862 | | { |
| | | 8863 | | // ## 2. Get Next Local Variable Index/Location |
| | | 8864 | | |
| | | 8865 | | // The original ILGenerator methods we are trying to hack without allocating the `LocalBuilder` |
| | | 8866 | | /* |
| | | 8867 | | public virtual LocalBuilder DeclareLocal(Type localType) |
| | | 8868 | | { |
| | | 8869 | | return this.DeclareLocal(localType, false); |
| | | 8870 | | } |
| | | 8871 | | |
| | | 8872 | | public virtual LocalBuilder DeclareLocal(Type localType, bool pinned) |
| | | 8873 | | { |
| | | 8874 | | MethodBuilder methodBuilder = this.m_methodBuilder as MethodBuilder; |
| | | 8875 | | if ((MethodInfo)methodBuilder == (MethodInfo)null) |
| | | 8876 | | throw new NotSupportedException(); |
| | | 8877 | | if (methodBuilder.IsTypeCreated()) |
| | | 8878 | | throw new InvalidOperationException(SR.InvalidOperation_TypeHasBeenCreated); |
| | | 8879 | | if (localType == (Type)null) |
| | | 8880 | | throw new ArgumentNullException(nameof(localType)); |
| | | 8881 | | if (methodBuilder.m_bIsBaked) |
| | | 8882 | | throw new InvalidOperationException(SR.InvalidOperation_MethodBaked); |
| | | 8883 | | this.m_localSignature.AddArgument(localType, pinned); |
| | | 8884 | | LocalBuilder localBuilder = new LocalBuilder(this.m_localCount, localType, (MethodInfo)methodBuilder |
| | | 8885 | | ++this.m_localCount; |
| | | 8886 | | return localBuilder; |
| | | 8887 | | } |
| | | 8888 | | */ |
| | | 8889 | | // Let's try to acquire the more efficient less allocating method |
| | | 8890 | | var m_localSignatureField = DynamicILGeneratorType.GetField("m_localSignature", instanceNonPublic); |
| | | 8891 | | if (m_localSignatureField == null) |
| | | 8892 | | goto endOfGetNextVar; |
| | | 8893 | | |
| | | 8894 | | var m_localCountField = DynamicILGeneratorType.GetField("m_localCount", instanceNonPublic); |
| | | 8895 | | if (m_localCountField == null) |
| | | 8896 | | goto endOfGetNextVar; |
| | | 8897 | | |
| | | 8898 | | // looking for the `SignatureHelper.AddArgument(Type argument, bool pinned)` |
| | | 8899 | | var typeAndBoolParamTypes = ExpressionCompiler.RentPooledOrNewParamTypes(typeof(Type), typeof(bool)); |
| | | 8900 | | var SignatureHelper_AddArgumentMethod = typeof(SignatureHelper).GetMethod("AddArgument", typeAndBoolPara |
| | | 8901 | | ExpressionCompiler.FreePooledParamTypes(typeAndBoolParamTypes); |
| | | 8902 | | if (SignatureHelper_AddArgumentMethod == null) |
| | | 8903 | | goto endOfGetNextVar; |
| | | 8904 | | |
| | | 8905 | | // our own helper - always available |
| | | 8906 | | var postIncMethod = typeof(DynamicMethodHacks).GetMethod(nameof(PostInc), staticNonPublic); |
| | | 8907 | | Debug.Assert(postIncMethod != null, "PostInc method not found!"); |
| | | 8908 | | |
| | | 8909 | | var paramTypes = ExpressionCompiler.RentPooledOrNewParamTypes(typeof(ExpressionCompiler.ArrayClosure), t |
| | | 8910 | | var dynMethod = new DynamicMethod(string.Empty, typeof(int), paramTypes, typeof(ExpressionCompiler.Array |
| | | 8911 | | |
| | | 8912 | | // it does not use the pooled il generator here, to isolate this variable hack from the il generator poo |
| | | 8913 | | var il = dynMethod.GetILGenerator(32); |
| | | 8914 | | |
| | | 8915 | | // emitting `il.m_localSignature.AddArgument(type);` |
| | | 8916 | | il.Emit(OpCodes.Ldarg_1); // load `il` argument (arg_0 is the empty closure object) |
| | | 8917 | | il.Emit(OpCodes.Ldfld, m_localSignatureField); |
| | | 8918 | | il.Emit(OpCodes.Ldarg_2); // load `type` argument |
| | | 8919 | | il.Emit(OpCodes.Ldc_I4_0); // load `pinned: false` argument |
| | | 8920 | | il.Emit(OpCodes.Call, SignatureHelper_AddArgumentMethod); |
| | | 8921 | | |
| | | 8922 | | // emitting `return PostInc(ref il.LocalCount);` |
| | | 8923 | | il.Emit(OpCodes.Ldarg_1); // load `il` argument |
| | | 8924 | | il.Emit(OpCodes.Ldflda, m_localCountField); |
| | | 8925 | | il.Emit(OpCodes.Call, postIncMethod); |
| | | 8926 | | |
| | | 8927 | | il.Emit(OpCodes.Ret); |
| | | 8928 | | |
| | | 8929 | | GetNextLocalVarLocation = (Func<ILGenerator, Type, int>) |
| | | 8930 | | dynMethod.CreateDelegate(typeof(Func<ILGenerator, Type, int>), ExpressionCompiler.EmptyArrayClosure) |
| | | 8931 | | |
| | | 8932 | | ExpressionCompiler.FreePooledParamTypes(paramTypes); |
| | | 8933 | | endOfGetNextVar:; |
| | | 8934 | | } |
| | | 8935 | | |
| | | 8936 | | // Restore the demit |
| | | 8937 | | ILGeneratorTools.DisableDemit = prevDemitValue; |
| | | 8938 | | |
| | | 8939 | | // ## 3 TBD |
| | | 8940 | | // |
| | | 8941 | | // todo: @perf do batch Emit by manually calling `EnsureCapacity` once then `InternalEmit` multiple times |
| | | 8942 | | // todo: @perf Replace the `Emit(opcode, int)` with the more specialized `Emit(opcode)`, `Emit(opcode, byte) |
| | | 8943 | | // avoiding internal check for Ldc_I4, Ldarg, Ldarga, Starg then call `PutInteger4` only if needed see https |
| | | 8944 | | // var ensureCapacityMethod = ilGenTypeInfo.GetDeclaredMethod("EnsureCapacity"); |
| | | 8945 | | // var internalEmitMethod = ilGenTypeInfo.GetDeclaredMethod("InternalEmit"); |
| | | 8946 | | // var putInteger4Method = ilGenTypeInfo.GetDeclaredMethod("PutInteger4"); |
| | | 8947 | | } |
| | | 8948 | | |
| | | 8949 | | |
| | | 8950 | | #if DEBUG_INFO_LOCAL_VARIABLE_USAGE |
| | | 8951 | | [ThreadStatic] |
| | | 8952 | | public static SmallMap8<Type, int, RefEq<Type>> LocalVarUsage; |
| | | 8953 | | #endif |
| | | 8954 | | // todo: @perf add the map of the used local variables that can be reused, e.g. we are getting the variable used |
| | | 8955 | | /// <summary>Efficiently returns the next variable index, hopefully without unnecessary allocations.</summary> |
| | | 8956 | | [MethodImpl((MethodImplOptions)256)] |
| | | 8957 | | public static int GetNextLocalVarIndex(this ILGenerator il, Type t) |
| | | 8958 | | { |
| | | 8959 | | #if DEBUG_INFO_LOCAL_VARIABLE_USAGE |
| | | 8960 | | try |
| | | 8961 | | { |
| | | 8962 | | ref var varUsage = ref LocalVarUsage.Map.AddOrGetValueRef(t, out var found); |
| | | 8963 | | if (!found) |
| | | 8964 | | varUsage = 1; |
| | | 8965 | | else |
| | | 8966 | | ++varUsage; |
| | | 8967 | | } |
| | | 8968 | | catch (Exception ex) |
| | | 8969 | | { |
| | | 8970 | | Debug.WriteLine("Error tracking the local variable usage: " + ex); |
| | | 8971 | | } |
| | | 8972 | | #endif |
| | | 8973 | | return GetNextLocalVarLocation?.Invoke(il, t) ?? il.DeclareLocal(t).LocalIndex; |
| | | 8974 | | } |
| | | 8975 | | |
| | | 8976 | | // todo: @perf add MultiOpCodes emit to save on the EnsureCapacity calls |
| | | 8977 | | // todo: @perf create EmitMethod without additional GetParameters call |
| | | 8978 | | /* |
| | | 8979 | | // original code: |
| | | 8980 | | public override void Emit(OpCode opcode, MethodInfo meth) |
| | | 8981 | | { |
| | | 8982 | | ArgumentNullException.ThrowIfNull(meth); |
| | | 8983 | | |
| | | 8984 | | int stackchange = 0; |
| | | 8985 | | int token; |
| | | 8986 | | DynamicMethod? dynMeth = meth as DynamicMethod; |
| | | 8987 | | if (dynMeth == null) |
| | | 8988 | | { |
| | | 8989 | | RuntimeMethodInfo? rtMeth = meth as RuntimeMethodInfo; |
| | | 8990 | | if (rtMeth == null) |
| | | 8991 | | throw new ArgumentException(SR.Argument_MustBeRuntimeMethodInfo, nameof(meth)); |
| | | 8992 | | |
| | | 8993 | | RuntimeType declaringType = rtMeth.GetRuntimeType(); |
| | | 8994 | | if (declaringType != null && (declaringType.IsGenericType || declaringType.IsArray)) |
| | | 8995 | | token = GetTokenFor(rtMeth, declaringType); |
| | | 8996 | | else |
| | | 8997 | | token = GetTokenFor(rtMeth); |
| | | 8998 | | } |
| | | 8999 | | else |
| | | 9000 | | { |
| | | 9001 | | // rule out not allowed operations on DynamicMethods |
| | | 9002 | | if (opcode.Equals(OpCodes.Ldtoken) || opcode.Equals(OpCodes.Ldftn) || opcode.Equals(OpCodes.Ldvirtftn)) |
| | | 9003 | | { |
| | | 9004 | | throw new ArgumentException(SR.Argument_InvalidOpCodeOnDynamicMethod); |
| | | 9005 | | } |
| | | 9006 | | token = GetTokenFor(dynMeth); |
| | | 9007 | | } |
| | | 9008 | | |
| | | 9009 | | EnsureCapacity(7); |
| | | 9010 | | InternalEmit(opcode); |
| | | 9011 | | |
| | | 9012 | | if (opcode.StackBehaviourPush == StackBehaviour.Varpush |
| | | 9013 | | && meth.ReturnType != typeof(void)) |
| | | 9014 | | { |
| | | 9015 | | stackchange++; |
| | | 9016 | | } |
| | | 9017 | | if (opcode.StackBehaviourPop == StackBehaviour.Varpop) |
| | | 9018 | | { |
| | | 9019 | | stackchange -= meth.GetParametersNoCopy().Length; |
| | | 9020 | | } |
| | | 9021 | | // Pop the "this" parameter if the method is non-static, |
| | | 9022 | | // and the instruction is not newobj/ldtoken/ldftn. |
| | | 9023 | | if (!meth.IsStatic && |
| | | 9024 | | !(opcode.Equals(OpCodes.Newobj) || opcode.Equals(OpCodes.Ldtoken) || opcode.Equals(OpCodes.Ldftn))) |
| | | 9025 | | { |
| | | 9026 | | stackchange--; |
| | | 9027 | | } |
| | | 9028 | | |
| | | 9029 | | UpdateStackSize(opcode, stackchange); |
| | | 9030 | | PutInteger4(token); |
| | | 9031 | | } |
| | | 9032 | | |
| | | 9033 | | // stripped down code for not generic method and not array method: |
| | | 9034 | | public override void Emit(OpCode opcode, MethodInfo meth, int paramCount) |
| | | 9035 | | { |
| | | 9036 | | m_scope.m_tokens.Add(((RuntimeMethodInfo)meth).MethodHandle); |
| | | 9037 | | var token = m_scope.m_tokens.Count - 1 | (int)MetadataTokenType.MethodDef; // MethodDef is 0x06000000 |
| | | 9038 | | |
| | | 9039 | | // Guarantees an array capable of holding at least size elements. |
| | | 9040 | | if (m_length + size >= m_ILStream.Length) |
| | | 9041 | | IncreaseCapacity(7); |
| | | 9042 | | |
| | | 9043 | | m_ILStream[m_length++] = (byte)opcode.Value; |
| | | 9044 | | UpdateStackSize(opcode, 0); |
| | | 9045 | | |
| | | 9046 | | int stackchange = 0; |
| | | 9047 | | if (meth.ReturnType != typeof(void)) |
| | | 9048 | | stackchange++; |
| | | 9049 | | stackchange -= paramCount; |
| | | 9050 | | if (!meth.IsStatic) |
| | | 9051 | | stackchange--; |
| | | 9052 | | |
| | | 9053 | | UpdateStackSize(opcode, stackchange); |
| | | 9054 | | |
| | | 9055 | | BinaryPrimitives.WriteInt32LittleEndian(m_ILStream.AsSpan(m_length), token); |
| | | 9056 | | m_length += 4; |
| | | 9057 | | } |
| | | 9058 | | */ |
| | | 9059 | | } |
| | | 9060 | | |
| | | 9061 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 9062 | | internal static class ToExpressionPrinter |
| | | 9063 | | { |
| | | 9064 | | /// <summary> |
| | | 9065 | | /// Prints the expression in its constructing syntax - |
| | | 9066 | | /// helpful to get the expression from the debug session and put into it the code for the test. |
| | | 9067 | | /// </summary> |
| | | 9068 | | public static string ToExpressionString(this Expression expr, ObjectToCode notRecognizedToCode = null) => |
| | | 9069 | | expr.ToExpressionString(out var _, out var _, out var _, notRecognizedToCode: notRecognizedToCode); |
| | | 9070 | | |
| | | 9071 | | // todo: @api There should be a version returning StringBuilder the same as for ToCSharpString |
| | | 9072 | | /// <summary> |
| | | 9073 | | /// Prints the expression in its constructing syntax - |
| | | 9074 | | /// helpful to get the expression from the debug session and put into it the code for the test. |
| | | 9075 | | /// In addition, returns the gathered expressions, parameters ad labels. |
| | | 9076 | | /// </summary> |
| | | 9077 | | public static string ToExpressionString(this Expression expr, |
| | | 9078 | | out List<ParameterExpression> paramsExprs, out List<Expression> uniqueExprs, out List<LabelTarget> lts, |
| | | 9079 | | bool stripNamespace = false, Func<Type, string, string> printType = null, int indentSpaces = 2, ObjectToCode |
| | | 9080 | | { |
| | | 9081 | | var sb = new StringBuilder(1024); |
| | | 9082 | | sb.Append("var expr = "); |
| | | 9083 | | paramsExprs = new List<ParameterExpression>(); |
| | | 9084 | | uniqueExprs = new List<Expression>(); |
| | | 9085 | | lts = new List<LabelTarget>(); |
| | | 9086 | | sb = expr.CreateExpressionString(sb, paramsExprs, uniqueExprs, lts, 2, stripNamespace, printType, indentSpac |
| | | 9087 | | |
| | | 9088 | | if (lts.Count > 0) |
| | | 9089 | | sb.Insert(0, $"var l = new LabelTarget[{lts.Count}]; // the labels{NewLine}"); |
| | | 9090 | | if (uniqueExprs.Count > 0) |
| | | 9091 | | sb.Insert(0, $"var e = new Expression[{uniqueExprs.Count}]; // the unique expressions{NewLine}"); |
| | | 9092 | | if (paramsExprs.Count > 0) |
| | | 9093 | | sb.Insert(0, $"var p = new ParameterExpression[{paramsExprs.Count}]; // the parameter expressions{NewLin |
| | | 9094 | | |
| | | 9095 | | return sb.ToString(); |
| | | 9096 | | } |
| | | 9097 | | |
| | | 9098 | | // Searches first for the expression reference in the `uniqueExprs` and adds the reference to expression by inde |
| | | 9099 | | // otherwise delegates to `CreateExpressionCodeString` |
| | | 9100 | | internal static StringBuilder ToExpressionString(this Expression expr, StringBuilder sb, |
| | | 9101 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9102 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 9103 | | { |
| | | 9104 | | if (expr is ParameterExpression p) |
| | | 9105 | | return p.ToExpressionString(sb, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, in |
| | | 9106 | | |
| | | 9107 | | if (uniqueExprs.TryGetIndex(out var i, expr, uniqueExprs.Count, default(RefEq<Expression>))) |
| | | 9108 | | return sb.Append("e[").Append(i) |
| | | 9109 | | // output expression type and kind to help to understand what is it |
| | | 9110 | | .Append(" // ").Append(expr.NodeType.ToString()).Append(" of ") |
| | | 9111 | | .Append(expr.Type.ToCode(stripNamespace, printType)) |
| | | 9112 | | .NewLineIndent(lineIndent).Append("]"); |
| | | 9113 | | |
| | | 9114 | | uniqueExprs.Add(expr); |
| | | 9115 | | sb.Append("e[").Append(uniqueExprs.Count - 1).Append("]="); |
| | | 9116 | | return expr.CreateExpressionString(sb, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, |
| | | 9117 | | } |
| | | 9118 | | |
| | | 9119 | | internal static StringBuilder ToExpressionString(this ParameterExpression pe, StringBuilder sb, |
| | | 9120 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9121 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 9122 | | { |
| | | 9123 | | if (paramsExprs.TryGetIndex(out var i, pe, paramsExprs.Count, default(RefEq<PE>))) |
| | | 9124 | | { |
| | | 9125 | | SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named = default; |
| | | 9126 | | return sb |
| | | 9127 | | .Append("p[").Append(i) |
| | | 9128 | | .Append(" // (") |
| | | 9129 | | .Append(!pe.Type.IsPrimitive && pe.Type.IsValueType ? "[struct] " : string.Empty) |
| | | 9130 | | .Append(pe.Type.ToCode(stripNamespace, printType)) |
| | | 9131 | | .Append(' ') |
| | | 9132 | | .AppendName(pe, pe.Name, pe.Type.ToCode(stripNamespace, printType), ref named, pe.GetHashCode()).App |
| | | 9133 | | .NewLineIndent(lineIndent) |
| | | 9134 | | .Append(']'); |
| | | 9135 | | } |
| | | 9136 | | paramsExprs.Add(pe); |
| | | 9137 | | sb.Append("p[").Append(paramsExprs.Count - 1).Append("]="); |
| | | 9138 | | return pe.CreateExpressionString(sb, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, i |
| | | 9139 | | } |
| | | 9140 | | |
| | | 9141 | | internal static StringBuilder ToExpressionString(this LabelTarget lt, StringBuilder sb, List<LabelTarget> labelT |
| | | 9142 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType) |
| | | 9143 | | { |
| | | 9144 | | if (labelTargets.TryGetIndex(out var i, lt, labelTargets.Count, default(RefEq<LabelTarget>))) |
| | | 9145 | | { |
| | | 9146 | | SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named = default; |
| | | 9147 | | return sb.Append("l[").Append(i) |
| | | 9148 | | .Append(" // (").AppendName(lt, lt.Name, lt.Type.ToCode(stripNamespace, printType), ref named, lt.Ge |
| | | 9149 | | .NewLineIndent(lineIndent).Append(']'); |
| | | 9150 | | } |
| | | 9151 | | labelTargets.Add(lt); |
| | | 9152 | | sb.Append("l[").Append(labelTargets.Count - 1).Append("]=Label("); |
| | | 9153 | | sb.AppendTypeOf(lt.Type, stripNamespace, printType); |
| | | 9154 | | |
| | | 9155 | | return (lt.Name != null ? sb.Append(", \"").Append(lt.Name).Append("\"") : sb).Append(")"); |
| | | 9156 | | } |
| | | 9157 | | |
| | | 9158 | | private static StringBuilder ToExpressionString(this IReadOnlyList<CatchBlock> bs, StringBuilder sb, |
| | | 9159 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9160 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 9161 | | { |
| | | 9162 | | if (bs.Count == 0) |
| | | 9163 | | return sb.Append("new CatchBlock[0]"); |
| | | 9164 | | for (var i = 0; i < bs.Count; i++) |
| | | 9165 | | bs[i].ToExpressionString((i > 0 ? sb.Append(',') : sb).NewLineIndent(lineIndent), |
| | | 9166 | | paramsExprs, uniqueExprs, lts, lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, n |
| | | 9167 | | return sb; |
| | | 9168 | | } |
| | | 9169 | | |
| | | 9170 | | private static StringBuilder ToExpressionString(this CatchBlock b, StringBuilder sb, |
| | | 9171 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9172 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 9173 | | { |
| | | 9174 | | sb.Append("MakeCatchBlock("); |
| | | 9175 | | sb.NewLineIndent(lineIndent).AppendTypeOf(b.Test, stripNamespace, printType).Append(','); |
| | | 9176 | | sb.NewLineIndentExpr(b.Variable, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, inden |
| | | 9177 | | sb.NewLineIndentExpr(b.Body, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentSpa |
| | | 9178 | | sb.NewLineIndentExpr(b.Filter, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentS |
| | | 9179 | | return sb.Append(')'); |
| | | 9180 | | } |
| | | 9181 | | |
| | | 9182 | | private static StringBuilder ToExpressionString(this IReadOnlyList<SwitchCase> items, StringBuilder sb, |
| | | 9183 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9184 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 9185 | | { |
| | | 9186 | | if (items.Count == 0) |
| | | 9187 | | return sb.Append("new SwitchCase[0]"); |
| | | 9188 | | for (var i = 0; i < items.Count; i++) |
| | | 9189 | | items[i].ToExpressionString((i > 0 ? sb.Append(',') : sb).NewLineIndent(lineIndent), |
| | | 9190 | | paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToC |
| | | 9191 | | return sb; |
| | | 9192 | | } |
| | | 9193 | | |
| | | 9194 | | private static StringBuilder ToExpressionString(this SwitchCase s, StringBuilder sb, |
| | | 9195 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9196 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 9197 | | { |
| | | 9198 | | sb.Append("SwitchCase("); |
| | | 9199 | | sb.NewLineIndentExpr(s.Body, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentSpa |
| | | 9200 | | sb.NewLineIndentArgumentExprs(s.TestValues, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, print |
| | | 9201 | | return sb.Append(')'); |
| | | 9202 | | } |
| | | 9203 | | |
| | | 9204 | | private static StringBuilder ToExpressionString(this MemberBinding mb, StringBuilder sb, |
| | | 9205 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9206 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 9207 | | { |
| | | 9208 | | if (mb is MemberAssignment ma) |
| | | 9209 | | { |
| | | 9210 | | sb.Append("Bind("); |
| | | 9211 | | sb.NewLineIndent(lineIndent).AppendMember(mb.Member, stripNamespace, printType).Append(", "); |
| | | 9212 | | sb.NewLineIndentExpr(ma.Expression, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType |
| | | 9213 | | return sb.Append(")"); |
| | | 9214 | | } |
| | | 9215 | | |
| | | 9216 | | if (mb is MemberMemberBinding mmb) |
| | | 9217 | | { |
| | | 9218 | | sb.NewLineIndent(lineIndent).Append(NotSupportedExpression).Append(nameof(MemberMemberBinding)).NewLineI |
| | | 9219 | | sb.Append("MemberBind("); |
| | | 9220 | | sb.NewLineIndent(lineIndent).AppendMember(mb.Member, stripNamespace, printType); |
| | | 9221 | | |
| | | 9222 | | for (int i = 0; i < mmb.Bindings.Count; i++) |
| | | 9223 | | mmb.Bindings[i].ToExpressionString(sb.Append(", ").NewLineIndent(lineIndent), |
| | | 9224 | | paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentSpaces, notRecognize |
| | | 9225 | | return sb.Append(")"); |
| | | 9226 | | } |
| | | 9227 | | |
| | | 9228 | | if (mb is MemberListBinding mlb) |
| | | 9229 | | { |
| | | 9230 | | sb.NewLineIndent(lineIndent).Append(NotSupportedExpression).Append(nameof(MemberListBinding)).NewLineInd |
| | | 9231 | | sb.Append("ListBind("); |
| | | 9232 | | sb.NewLineIndent(lineIndent).AppendMember(mb.Member, stripNamespace, printType); |
| | | 9233 | | |
| | | 9234 | | for (int i = 0; i < mlb.Initializers.Count; i++) |
| | | 9235 | | mlb.Initializers[i].ToExpressionString(sb.Append(", ").NewLineIndent(lineIndent), |
| | | 9236 | | paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentSpaces, notRecognize |
| | | 9237 | | |
| | | 9238 | | return sb.Append(")"); |
| | | 9239 | | } |
| | | 9240 | | |
| | | 9241 | | return sb; |
| | | 9242 | | } |
| | | 9243 | | |
| | | 9244 | | private static StringBuilder ToExpressionString(this ElementInit ei, StringBuilder sb, |
| | | 9245 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9246 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 9247 | | { |
| | | 9248 | | sb.Append("ElementInit("); |
| | | 9249 | | sb.NewLineIndent(lineIndent).AppendMethod(ei.AddMethod, stripNamespace, printType).Append(", "); |
| | | 9250 | | sb.NewLineIndentArgumentExprs(ei.Arguments, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, print |
| | | 9251 | | return sb.Append(")"); |
| | | 9252 | | } |
| | | 9253 | | |
| | | 9254 | | private const string NotSupportedExpression = "// NOT_SUPPORTED_EXPRESSION: "; |
| | | 9255 | | |
| | | 9256 | | internal static StringBuilder CreateExpressionString(this Expression e, StringBuilder sb, |
| | | 9257 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 9258 | | int lineIndent = 0, bool stripNamespace = false, Func<Type, string, string> printType = null, int indentSpac |
| | | 9259 | | { |
| | | 9260 | | switch (e.NodeType) |
| | | 9261 | | { |
| | | 9262 | | case ExpressionType.Constant: |
| | | 9263 | | { |
| | | 9264 | | var x = (ConstantExpression)e; |
| | | 9265 | | sb.Append("Constant("); |
| | | 9266 | | if (x.Value == null) |
| | | 9267 | | { |
| | | 9268 | | sb.Append("null"); |
| | | 9269 | | if (x.Type != typeof(object)) |
| | | 9270 | | sb.Append(", ").AppendTypeOf(x.Type, stripNamespace, printType); |
| | | 9271 | | } |
| | | 9272 | | else if (x.Value is Type t) |
| | | 9273 | | sb.AppendTypeOf(t, stripNamespace, printType); |
| | | 9274 | | else |
| | | 9275 | | { |
| | | 9276 | | sb.Append(x.Value.ToCode(notRecognizedToCode ?? CodePrinter.DefaultNotRecognizedToCode, stri |
| | | 9277 | | if (x.Value.GetType() != x.Type) |
| | | 9278 | | sb.Append(", ").AppendTypeOf(x.Type, stripNamespace, printType); |
| | | 9279 | | } |
| | | 9280 | | return sb.Append(')'); |
| | | 9281 | | } |
| | | 9282 | | case ExpressionType.Parameter: |
| | | 9283 | | { |
| | | 9284 | | var x = (ParameterExpression)e; |
| | | 9285 | | sb.Append("Parameter(").AppendTypeOf(x.Type, stripNamespace, printType); |
| | | 9286 | | if (x.IsByRef) |
| | | 9287 | | sb.Append(".MakeByRefType()"); |
| | | 9288 | | if (x.Name != null) |
| | | 9289 | | sb.Append(", \"").Append(x.Name).Append('"'); |
| | | 9290 | | return sb.Append(')'); |
| | | 9291 | | } |
| | | 9292 | | case ExpressionType.New: |
| | | 9293 | | { |
| | | 9294 | | var x = (NewExpression)e; |
| | | 9295 | | var args = x.Arguments; |
| | | 9296 | | |
| | | 9297 | | if (args.Count == 0 && e.Type.IsValueType) |
| | | 9298 | | return sb.Append("New(").AppendTypeOf(e.Type, stripNamespace, printType).Append(')'); |
| | | 9299 | | |
| | | 9300 | | sb.Append("New( // ").Append(args.Count).Append(" args"); |
| | | 9301 | | var ctorIndex = x.Constructor.DeclaringType.GetTypeInfo().DeclaredConstructors.AsArray().GetFirs |
| | | 9302 | | sb.NewLineIndent(lineIndent).AppendTypeOf(x.Type, stripNamespace, printType) |
| | | 9303 | | .Append(".GetTypeInfo().DeclaredConstructors.AsArray()[").Append(ctorIndex).Append("],"); |
| | | 9304 | | sb.NewLineIndentArgumentExprs(args, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, p |
| | | 9305 | | return sb.Append(')'); |
| | | 9306 | | } |
| | | 9307 | | case ExpressionType.Call: |
| | | 9308 | | { |
| | | 9309 | | var mc = (MethodCallExpression)e; |
| | | 9310 | | var diffTypes = mc.Type != mc.Method.ReturnType; |
| | | 9311 | | sb.Append(diffTypes ? "Convert(Call(" : "Call("); |
| | | 9312 | | sb.NewLineIndentExpr(mc.Object, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, print |
| | | 9313 | | sb.NewLineIndent(lineIndent).AppendMethod(mc.Method, stripNamespace, printType); |
| | | 9314 | | if (mc.Arguments.Count > 0) |
| | | 9315 | | sb.Append(',').NewLineIndentArgumentExprs(mc.Arguments, paramsExprs, uniqueExprs, lts, lineI |
| | | 9316 | | return diffTypes ? sb.Append("), ").AppendTypeOf(e.Type, stripNamespace, printType).Append(')') |
| | | 9317 | | } |
| | | 9318 | | case ExpressionType.MemberAccess: |
| | | 9319 | | { |
| | | 9320 | | var x = (MemberExpression)e; |
| | | 9321 | | if (x.Member is PropertyInfo p) |
| | | 9322 | | { |
| | | 9323 | | sb.Append("Property("); |
| | | 9324 | | sb.NewLineIndentExpr(x.Expression, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace |
| | | 9325 | | sb.NewLineIndent(lineIndent).AppendProperty(p, stripNamespace, printType); |
| | | 9326 | | } |
| | | 9327 | | else |
| | | 9328 | | { |
| | | 9329 | | sb.Append("Field("); |
| | | 9330 | | sb.NewLineIndentExpr(x.Expression, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace |
| | | 9331 | | sb.NewLineIndent(lineIndent).AppendField((FieldInfo)x.Member, stripNamespace, printType); |
| | | 9332 | | } |
| | | 9333 | | return sb.Append(')'); |
| | | 9334 | | } |
| | | 9335 | | |
| | | 9336 | | case ExpressionType.NewArrayBounds: |
| | | 9337 | | case ExpressionType.NewArrayInit: |
| | | 9338 | | { |
| | | 9339 | | var x = (NewArrayExpression)e; |
| | | 9340 | | if (e.NodeType == ExpressionType.NewArrayInit) |
| | | 9341 | | { |
| | | 9342 | | // todo: @feature multi-dimensional array initializers are not supported yet, they also are |
| | | 9343 | | if (e.Type.GetArrayRank() > 1) |
| | | 9344 | | sb.NewLineIndent(lineIndent).Append(NotSupportedExpression).Append(e.NodeType).NewLineIn |
| | | 9345 | | sb.Append("NewArrayInit("); |
| | | 9346 | | } |
| | | 9347 | | else |
| | | 9348 | | { |
| | | 9349 | | sb.Append("NewArrayBounds("); |
| | | 9350 | | } |
| | | 9351 | | sb.NewLineIndent(lineIndent).AppendTypeOf(x.Type.GetElementType(), stripNamespace, printType).Ap |
| | | 9352 | | sb.NewLineIndentArgumentExprs(x.Expressions, paramsExprs, uniqueExprs, lts, lineIndent, stripNam |
| | | 9353 | | return sb.Append(')'); |
| | | 9354 | | } |
| | | 9355 | | case ExpressionType.MemberInit: |
| | | 9356 | | { |
| | | 9357 | | var x = (MemberInitExpression)e; |
| | | 9358 | | sb.Append("MemberInit((NewExpression)("); |
| | | 9359 | | sb.NewLineIndentExpr(x.NewExpression, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, |
| | | 9360 | | .Append(')'); |
| | | 9361 | | for (var i = 0; i < x.Bindings.Count; i++) |
| | | 9362 | | x.Bindings[i].ToExpressionString(sb.Append(", ").NewLineIndent(lineIndent), |
| | | 9363 | | paramsExprs, uniqueExprs, lts, lineIndent + indentSpaces, stripNamespace, printType, ind |
| | | 9364 | | return sb.Append(')'); |
| | | 9365 | | } |
| | | 9366 | | case ExpressionType.Lambda: |
| | | 9367 | | { |
| | | 9368 | | var x = (LambdaExpression)e; |
| | | 9369 | | sb.Append("Lambda<").Append(x.Type.ToCode(stripNamespace, printType)).Append(">("); |
| | | 9370 | | sb.NewLineIndentExpr(x.Body, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printTyp |
| | | 9371 | | sb.NewLineIndentArgumentExprs(x.Parameters, paramsExprs, uniqueExprs, lts, lineIndent, stripName |
| | | 9372 | | return sb.Append(')'); |
| | | 9373 | | } |
| | | 9374 | | case ExpressionType.Invoke: |
| | | 9375 | | { |
| | | 9376 | | var x = (InvocationExpression)e; |
| | | 9377 | | sb.Append("Invoke("); |
| | | 9378 | | sb.NewLineIndentExpr(x.Expression, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, pr |
| | | 9379 | | sb.NewLineIndentArgumentExprs(x.Arguments, paramsExprs, uniqueExprs, lts, lineIndent, stripNames |
| | | 9380 | | return sb.Append(")"); |
| | | 9381 | | } |
| | | 9382 | | case ExpressionType.Conditional: |
| | | 9383 | | { |
| | | 9384 | | var x = (ConditionalExpression)e; |
| | | 9385 | | sb.Append("Condition("); |
| | | 9386 | | sb.NewLineIndentExpr(x.Test, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printTyp |
| | | 9387 | | sb.NewLineIndentExpr(x.IfTrue, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printT |
| | | 9388 | | sb.NewLineIndentExpr(x.IfFalse, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, print |
| | | 9389 | | sb.NewLineIndent(lineIndent).AppendTypeOf(x.Type, stripNamespace, printType); |
| | | 9390 | | return sb.Append(')'); |
| | | 9391 | | } |
| | | 9392 | | case ExpressionType.Block: |
| | | 9393 | | { |
| | | 9394 | | var x = (BlockExpression)e; |
| | | 9395 | | sb.Append("Block("); |
| | | 9396 | | sb.NewLineIndent(lineIndent).AppendTypeOf(x.Type, stripNamespace, printType).Append(','); |
| | | 9397 | | |
| | | 9398 | | if (x.Variables.Count == 0) |
| | | 9399 | | sb.NewLineIndent(lineIndent).Append("new ParameterExpression[0], "); |
| | | 9400 | | else |
| | | 9401 | | { |
| | | 9402 | | sb.NewLineIndent(lineIndent).Append("new[] {"); |
| | | 9403 | | for (var i = 0; i < x.Variables.Count; i++) |
| | | 9404 | | x.Variables[i].ToExpressionString( |
| | | 9405 | | (i > 0 ? sb.Append(',') : sb).NewLineIndent(lineIndent + indentSpaces), |
| | | 9406 | | paramsExprs, uniqueExprs, lts, lineIndent + indentSpaces, stripNamespace, printType, |
| | | 9407 | | sb.NewLineIndent(lineIndent).Append("},"); |
| | | 9408 | | } |
| | | 9409 | | |
| | | 9410 | | sb.NewLineIndentArgumentExprs(x.Expressions, paramsExprs, uniqueExprs, lts, lineIndent, stripNam |
| | | 9411 | | return sb.Append(')'); |
| | | 9412 | | } |
| | | 9413 | | case ExpressionType.Loop: |
| | | 9414 | | { |
| | | 9415 | | var x = (LoopExpression)e; |
| | | 9416 | | sb.Append("Loop("); |
| | | 9417 | | sb.NewLineIndentExpr(x.Body, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printTyp |
| | | 9418 | | |
| | | 9419 | | if (x.BreakLabel != null) |
| | | 9420 | | x.BreakLabel.ToExpressionString(sb.Append(',').NewLineIndent(lineIndent), lts, lineIndent, s |
| | | 9421 | | |
| | | 9422 | | if (x.ContinueLabel != null) |
| | | 9423 | | x.ContinueLabel.ToExpressionString(sb.Append(',').NewLineIndent(lineIndent), lts, lineIndent |
| | | 9424 | | |
| | | 9425 | | return sb.Append(')'); |
| | | 9426 | | } |
| | | 9427 | | case ExpressionType.Index: |
| | | 9428 | | { |
| | | 9429 | | var x = (IndexExpression)e; |
| | | 9430 | | sb.Append(x.Indexer != null ? "MakeIndex(" : "ArrayAccess("); |
| | | 9431 | | sb.NewLineIndentExpr(x.Object, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printT |
| | | 9432 | | |
| | | 9433 | | if (x.Indexer != null) |
| | | 9434 | | sb.NewLineIndent(lineIndent).AppendProperty(x.Indexer, stripNamespace, printType).Append(", |
| | | 9435 | | |
| | | 9436 | | sb.Append("new Expression[] {"); |
| | | 9437 | | for (var i = 0; i < x.Arguments.Count; i++) |
| | | 9438 | | (i > 0 ? sb.Append(',') : sb) |
| | | 9439 | | .NewLineIndentExpr(x.Arguments[i], paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace |
| | | 9440 | | return sb.Append("})"); |
| | | 9441 | | } |
| | | 9442 | | case ExpressionType.Try: |
| | | 9443 | | { |
| | | 9444 | | var x = (TryExpression)e; |
| | | 9445 | | if (x.Fault != null) |
| | | 9446 | | { |
| | | 9447 | | sb.Append("TryFault("); |
| | | 9448 | | sb.NewLineIndentExpr(x.Body, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, prin |
| | | 9449 | | sb.NewLineIndentExpr(x.Fault, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, pri |
| | | 9450 | | } |
| | | 9451 | | else if (x.Finally == null) |
| | | 9452 | | { |
| | | 9453 | | sb.Append("TryCatch("); |
| | | 9454 | | sb.NewLineIndentExpr(x.Body, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, prin |
| | | 9455 | | x.Handlers.ToExpressionString(sb, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, |
| | | 9456 | | } |
| | | 9457 | | else if (x.Handlers == null) |
| | | 9458 | | { |
| | | 9459 | | sb.Append("TryFinally("); |
| | | 9460 | | sb.NewLineIndentExpr(x.Body, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, prin |
| | | 9461 | | sb.NewLineIndentExpr(x.Finally, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, p |
| | | 9462 | | } |
| | | 9463 | | else |
| | | 9464 | | { |
| | | 9465 | | sb.Append("TryCatchFinally("); |
| | | 9466 | | sb.NewLineIndentExpr(x.Body, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, prin |
| | | 9467 | | sb.NewLineIndentExpr(x.Finally, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, p |
| | | 9468 | | x.Handlers.ToExpressionString(sb, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, |
| | | 9469 | | } |
| | | 9470 | | |
| | | 9471 | | return sb.Append(')'); |
| | | 9472 | | } |
| | | 9473 | | case ExpressionType.Label: |
| | | 9474 | | { |
| | | 9475 | | var x = (LabelExpression)e; |
| | | 9476 | | sb.Append("Label("); |
| | | 9477 | | x.Target.ToExpressionString(sb, lts, lineIndent, stripNamespace, printType); |
| | | 9478 | | if (x.DefaultValue != null) |
| | | 9479 | | sb.Append(',').NewLineIndentExpr(x.DefaultValue, paramsExprs, uniqueExprs, lts, lineIndent, |
| | | 9480 | | return sb.Append(')'); |
| | | 9481 | | } |
| | | 9482 | | case ExpressionType.Goto: |
| | | 9483 | | { |
| | | 9484 | | var x = (GotoExpression)e; |
| | | 9485 | | sb.Append("MakeGoto(").AppendEnum(x.Kind, stripNamespace, printType).Append(','); |
| | | 9486 | | |
| | | 9487 | | sb.NewLineIndent(lineIndent); |
| | | 9488 | | x.Target.ToExpressionString(sb, lts, lineIndent, stripNamespace, printType).Append(','); |
| | | 9489 | | |
| | | 9490 | | sb.NewLineIndentExpr(x.Value, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printTy |
| | | 9491 | | sb.NewLineIndent(lineIndent).AppendTypeOf(x.Type, stripNamespace, printType); |
| | | 9492 | | return sb.Append(')'); |
| | | 9493 | | } |
| | | 9494 | | case ExpressionType.Switch: |
| | | 9495 | | { |
| | | 9496 | | var x = (SwitchExpression)e; |
| | | 9497 | | sb.Append("Switch("); |
| | | 9498 | | sb.NewLineIndentExpr(x.SwitchValue, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, p |
| | | 9499 | | sb.NewLineIndentExpr(x.DefaultBody, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, p |
| | | 9500 | | sb.NewLineIndent(lineIndent).AppendMethod(x.Comparison, stripNamespace, printType); |
| | | 9501 | | ToExpressionString(x.Cases, sb, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, print |
| | | 9502 | | return sb.Append(')'); |
| | | 9503 | | } |
| | | 9504 | | case ExpressionType.Default: |
| | | 9505 | | { |
| | | 9506 | | return e.Type == typeof(void) ? sb.Append("Empty()") |
| | | 9507 | | : sb.Append("Default(").AppendTypeOf(e.Type, stripNamespace, printType).Append(')'); |
| | | 9508 | | } |
| | | 9509 | | case ExpressionType.TypeIs: |
| | | 9510 | | case ExpressionType.TypeEqual: |
| | | 9511 | | { |
| | | 9512 | | var x = (TypeBinaryExpression)e; |
| | | 9513 | | sb.Append(e.NodeType == ExpressionType.TypeIs ? "TypeIs(" : "TypeEqual("); |
| | | 9514 | | sb.NewLineIndentExpr(x.Expression, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, pr |
| | | 9515 | | sb.NewLineIndent(lineIndent).AppendTypeOf(x.TypeOperand, stripNamespace, printType); |
| | | 9516 | | return sb.Append(')'); |
| | | 9517 | | } |
| | | 9518 | | case ExpressionType.Coalesce: |
| | | 9519 | | { |
| | | 9520 | | var x = (BinaryExpression)e; |
| | | 9521 | | sb.Append("Coalesce("); |
| | | 9522 | | sb.NewLineIndentExpr(x.Left, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printTyp |
| | | 9523 | | sb.NewLineIndentExpr(x.Right, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printTy |
| | | 9524 | | if (x.Conversion != null) |
| | | 9525 | | sb.Append(',').NewLineIndentExpr(x.Conversion, paramsExprs, uniqueExprs, lts, lineIndent, st |
| | | 9526 | | return sb.Append(')'); |
| | | 9527 | | } |
| | | 9528 | | case ExpressionType.ListInit: |
| | | 9529 | | { |
| | | 9530 | | var x = (ListInitExpression)e; |
| | | 9531 | | sb.Append("ListInit((NewExpression)("); |
| | | 9532 | | sb.NewLineIndentExpr(x.NewExpression, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, |
| | | 9533 | | for (var i = 0; i < x.Initializers.Count; i++) |
| | | 9534 | | x.Initializers[i].ToExpressionString(sb.Append(", ").NewLineIndent(lineIndent), |
| | | 9535 | | paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentSpaces, notR |
| | | 9536 | | return sb.Append(")"); |
| | | 9537 | | } |
| | | 9538 | | case ExpressionType.Extension: |
| | | 9539 | | { |
| | | 9540 | | var reduced = e.Reduce(); // proceed with the reduced expression |
| | | 9541 | | return reduced.CreateExpressionString(sb, paramsExprs, uniqueExprs, lts, lineIndent, stripNamesp |
| | | 9542 | | } |
| | | 9543 | | case ExpressionType.Dynamic: |
| | | 9544 | | case ExpressionType.RuntimeVariables: |
| | | 9545 | | case ExpressionType.DebugInfo: |
| | | 9546 | | case ExpressionType.Quote: |
| | | 9547 | | { |
| | | 9548 | | return sb.NewLineIndent(lineIndent).Append(NotSupportedExpression).Append(e.NodeType).NewLineInd |
| | | 9549 | | } |
| | | 9550 | | default: |
| | | 9551 | | { |
| | | 9552 | | var name = Enum.GetName(typeof(ExpressionType), e.NodeType); |
| | | 9553 | | if (e is UnaryExpression u) |
| | | 9554 | | { |
| | | 9555 | | sb.Append(name).Append('('); |
| | | 9556 | | // todo: @feature maybe for big expression it makes sense to print the Type in comment here |
| | | 9557 | | sb.NewLineIndentExpr(u.Operand, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, p |
| | | 9558 | | |
| | | 9559 | | if (e.NodeType == ExpressionType.Convert || |
| | | 9560 | | e.NodeType == ExpressionType.ConvertChecked || |
| | | 9561 | | e.NodeType == ExpressionType.Unbox || |
| | | 9562 | | e.NodeType == ExpressionType.Throw || |
| | | 9563 | | e.NodeType == ExpressionType.TypeAs) |
| | | 9564 | | sb.Append(',').NewLineIndent(lineIndent).AppendTypeOf(e.Type, stripNamespace, printType) |
| | | 9565 | | |
| | | 9566 | | if ((e.NodeType == ExpressionType.Convert || e.NodeType == ExpressionType.ConvertChecked) |
| | | 9567 | | && u.Method != null) |
| | | 9568 | | sb.Append(',').NewLineIndent(lineIndent).AppendMethod(u.Method, stripNamespace, printTyp |
| | | 9569 | | } |
| | | 9570 | | |
| | | 9571 | | if (e is BinaryExpression b) |
| | | 9572 | | { |
| | | 9573 | | sb.Append("MakeBinary(").Append(typeof(ExpressionType).Name).Append('.').Append(name).Append |
| | | 9574 | | sb.NewLineIndentExpr(b.Left, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, prin |
| | | 9575 | | sb.NewLineIndentExpr(b.Right, paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, pri |
| | | 9576 | | if (b.IsLiftedToNull || b.Method != null) |
| | | 9577 | | { |
| | | 9578 | | sb.Append(',').NewLineIndent(lineIndent).Append("liftToNull: ").Append(b.IsLiftedToNull. |
| | | 9579 | | sb.Append(',').NewLineIndent(lineIndent).AppendMethod(b.Method, stripNamespace, printTyp |
| | | 9580 | | if (b.Conversion != null) |
| | | 9581 | | sb.Append(',').NewLineIndentExpr(b.Conversion, paramsExprs, uniqueExprs, lts, lineIn |
| | | 9582 | | } |
| | | 9583 | | |
| | | 9584 | | if (b.Conversion != null) |
| | | 9585 | | sb.Append(',').NewLineIndentExpr(b.Conversion, paramsExprs, uniqueExprs, lts, lineIndent |
| | | 9586 | | } |
| | | 9587 | | |
| | | 9588 | | return sb.Append(')'); |
| | | 9589 | | } |
| | | 9590 | | } |
| | | 9591 | | } |
| | | 9592 | | } |
| | | 9593 | | |
| | | 9594 | | /// <summary>Converts the expression into the valid C# code representation</summary> |
| | | 9595 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 9596 | | internal static class ToCSharpPrinter |
| | | 9597 | | { |
| | | 9598 | | /// <summary>Tries hard to convert the expression into the valid C# code</summary> |
| | | 9599 | | public static string ToCSharpString(this Expression expr) => |
| | | 9600 | | expr.ToCSharpString(new StringBuilder(1024), stripNamespace: true).Append(';').ToString(); |
| | | 9601 | | |
| | | 9602 | | /// <summary>Tries hard to convert the expression into the valid C# code</summary> |
| | | 9603 | | public static string ToCSharpString(this Expression expr, ObjectToCode notRecognizedToCode) => |
| | | 9604 | | expr.ToCSharpString(new StringBuilder(1024), stripNamespace: true, notRecognizedToCode: notRecognizedToCode) |
| | | 9605 | | |
| | | 9606 | | /// <summary>Tries hard to convert the expression into the valid C# code</summary> |
| | | 9607 | | public static StringBuilder ToCSharpString(this Expression e, StringBuilder sb, |
| | | 9608 | | int lineIndent = 0, bool stripNamespace = false, Func<Type, string, string> printType = null, int indentSpac |
| | | 9609 | | { |
| | | 9610 | | SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named = default; |
| | | 9611 | | return e.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 9612 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9613 | | } |
| | | 9614 | | |
| | | 9615 | | /// <summary>Indicates the expression container</summary> |
| | | 9616 | | internal enum EnclosedIn |
| | | 9617 | | { |
| | | 9618 | | /// <summary>Prefers the parens by default</summary> |
| | | 9619 | | ParensByDefault = 0, |
| | | 9620 | | /// <summary>The test part of the If expression</summary> |
| | | 9621 | | IfTest, |
| | | 9622 | | /// <summary>The `if (test)` part</summary> |
| | | 9623 | | Block, |
| | | 9624 | | /// <summary>The lambda</summary> |
| | | 9625 | | LambdaBody, |
| | | 9626 | | /// <summary>Return expression</summary> |
| | | 9627 | | Return, |
| | | 9628 | | /// <summary>Instructs the client code to avoid parenthesis for the generated C# code, e.g. if we have as si |
| | | 9629 | | AvoidParens, |
| | | 9630 | | /// <summary>The instance when calling the instance method or accessing the instance member</summary> |
| | | 9631 | | Instance, |
| | | 9632 | | } |
| | | 9633 | | |
| | | 9634 | | private static StringBuilder NullConstantOrDefaultToCSharpString(Type exprType, StringBuilder sb, EnclosedIn enc |
| | | 9635 | | bool stripNamespace, Func<Type, string, string> printType) => |
| | | 9636 | | exprType == typeof(object) |
| | | 9637 | | ? sb.Append("null") |
| | | 9638 | | : exprType.IsValueType && !exprType.IsNullable() |
| | | 9639 | | ? sb.Append("default(").Append(exprType.ToCode(stripNamespace, printType)).Append(')') |
| | | 9640 | | : sb.Append(encloseIn == EnclosedIn.Instance ? "((" : "(") |
| | | 9641 | | .Append(exprType.ToCode(stripNamespace, printType)).Append(")null") |
| | | 9642 | | .Append(encloseIn == EnclosedIn.Instance ? ")" : ""); |
| | | 9643 | | |
| | | 9644 | | private static StringBuilder InsertTopFFuncDefinitionOnce(StringBuilder sb) => |
| | | 9645 | | sb[0] != 'T' || sb[2] != '_' || sb[3] != '_' || sb[4] != 'f' || sb[5] != '<' |
| | | 9646 | | ? sb.Insert(0, "T __f<T>(System.Func<T> f) => f();\n") |
| | | 9647 | | : sb; |
| | | 9648 | | |
| | | 9649 | | internal static StringBuilder ToCSharpString(this Expression e, |
| | | 9650 | | StringBuilder sb, EnclosedIn enclosedIn, ref SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named, |
| | | 9651 | | int lineIndent = 0, bool stripNamespace = false, Func<Type, string, string> printType = null, int indentSpac |
| | | 9652 | | ObjectToCode notRecognizedToCode = null, bool isReturnByRef = false) |
| | | 9653 | | { |
| | | 9654 | | #if LIGHT_EXPRESSION |
| | | 9655 | | if (e.IsCustomToCSharpString) |
| | | 9656 | | return e.CustomToCSharpString(sb, enclosedIn, ref named, |
| | | 9657 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9658 | | #endif |
| | | 9659 | | switch (e.NodeType) |
| | | 9660 | | { |
| | | 9661 | | case ExpressionType.Constant: |
| | | 9662 | | { |
| | | 9663 | | var x = (ConstantExpression)e; |
| | | 9664 | | if (x.Value == null) |
| | | 9665 | | return x.Type == null ? sb.Append("null") : NullConstantOrDefaultToCSharpString(x.Type, sb, |
| | | 9666 | | |
| | | 9667 | | if (x.Value is Type t) |
| | | 9668 | | return sb.AppendTypeOf(t, stripNamespace, printType); |
| | | 9669 | | |
| | | 9670 | | if (x.Value.GetType() != x.Type) // add the Type cast |
| | | 9671 | | sb.Append('(').Append(x.Type.ToCode(stripNamespace, printType)).Append(')'); |
| | | 9672 | | |
| | | 9673 | | // value output may also add the cast for the primitive values |
| | | 9674 | | return sb.Append(x.Value.ToCode(notRecognizedToCode ?? CodePrinter.DefaultNotRecognizedToCode, s |
| | | 9675 | | } |
| | | 9676 | | case ExpressionType.Parameter: |
| | | 9677 | | { |
| | | 9678 | | if (isReturnByRef) |
| | | 9679 | | sb.Append("ref "); |
| | | 9680 | | return sb.AppendName(e, ((ParameterExpression)e).Name, e.Type.ToCode(stripNamespace, printType), |
| | | 9681 | | } |
| | | 9682 | | case ExpressionType.New: |
| | | 9683 | | { |
| | | 9684 | | var x = (NewExpression)e; |
| | | 9685 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 9686 | | var argIndent = lineIndent + indentSpaces; |
| | | 9687 | | |
| | | 9688 | | sb.Append("new ").Append(e.Type.ToCode(stripNamespace, printType)).Append('('); |
| | | 9689 | | |
| | | 9690 | | var args = x.Arguments; |
| | | 9691 | | if (args.Count == 1) |
| | | 9692 | | args[0].ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 9693 | | lineIndent, // don't increase indent the chain of single arguments inline, e.g. for `new |
| | | 9694 | | stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9695 | | else if (args.Count > 1) |
| | | 9696 | | for (var i = 0; i < args.Count; i++) |
| | | 9697 | | { |
| | | 9698 | | (i > 0 ? sb.Append(',') : sb).NewLineIndent(argIndent); |
| | | 9699 | | args[i].ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 9700 | | argIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9701 | | } |
| | | 9702 | | return sb.Append(')'); |
| | | 9703 | | } |
| | | 9704 | | case ExpressionType.Call: |
| | | 9705 | | { |
| | | 9706 | | var mc = (MethodCallExpression)e; |
| | | 9707 | | |
| | | 9708 | | // before adding anything about method call to the builder, |
| | | 9709 | | // let's measure the current indent to avoid the double indenting the arguments below in some ca |
| | | 9710 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 9711 | | var argIndent = lineIndent + indentSpaces; |
| | | 9712 | | |
| | | 9713 | | var method = mc.Method; |
| | | 9714 | | var methodReturnType = method.ReturnType; |
| | | 9715 | | if (methodReturnType.IsByRef) |
| | | 9716 | | sb.Append("ref "); |
| | | 9717 | | |
| | | 9718 | | // output convert only if it is required, e.g. it may happen for custom expressions designed by |
| | | 9719 | | var diffTypes = mc.Type != methodReturnType; |
| | | 9720 | | if (diffTypes) sb.Append("((").Append(mc.Type.ToCode(stripNamespace, printType)).Append(')'); |
| | | 9721 | | |
| | | 9722 | | if (mc.Object != null) |
| | | 9723 | | mc.Object.ToCSharpString(sb, EnclosedIn.Instance, ref named, |
| | | 9724 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9725 | | else // for the static method or the static extension method we need to qualify with the class |
| | | 9726 | | sb.Append(method.DeclaringType.ToCode(stripNamespace, printType)); |
| | | 9727 | | |
| | | 9728 | | var name = method.Name; |
| | | 9729 | | // check for the special methods, e.g. property access `get_` or `set_` and output them as prope |
| | | 9730 | | if (method.IsSpecialName) |
| | | 9731 | | { |
| | | 9732 | | if (name.StartsWith("get_")) |
| | | 9733 | | return sb.Append('.').Append(name.Substring(4)); |
| | | 9734 | | if (name.StartsWith("set_")) |
| | | 9735 | | { |
| | | 9736 | | sb.Append('.').Append(name.Substring(4)).Append(" = "); |
| | | 9737 | | mc.Arguments[0].ToCSharpExpression(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9738 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9739 | | return sb.AppendSemicolonOnce(); |
| | | 9740 | | } |
| | | 9741 | | } |
| | | 9742 | | |
| | | 9743 | | sb.Append('.').Append(name); |
| | | 9744 | | if (method.IsGenericMethod) |
| | | 9745 | | { |
| | | 9746 | | sb.Append('<'); |
| | | 9747 | | var typeArgs = method.GetGenericArguments(); |
| | | 9748 | | for (var i = 0; i < typeArgs.Length; i++) |
| | | 9749 | | (i == 0 ? sb : sb.Append(", ")).Append(typeArgs[i].ToCode(stripNamespace, printType)); |
| | | 9750 | | sb.Append('>'); |
| | | 9751 | | } |
| | | 9752 | | |
| | | 9753 | | sb.Append('('); |
| | | 9754 | | var pars = method.GetParameters(); |
| | | 9755 | | var args = mc.Arguments; |
| | | 9756 | | if (args.Count == 1) |
| | | 9757 | | { |
| | | 9758 | | var p = pars[0]; |
| | | 9759 | | var a = args[0]; |
| | | 9760 | | if (p.ParameterType.IsByRef && !a.IsConstantOrDefault()) |
| | | 9761 | | sb.Append(p.IsOut ? "out " : p.IsIn ? "in" : "ref "); |
| | | 9762 | | a.ToCSharpExpression(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9763 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9764 | | } |
| | | 9765 | | else if (args.Count > 1) |
| | | 9766 | | { |
| | | 9767 | | for (var i = 0; i < args.Count; i++) |
| | | 9768 | | { |
| | | 9769 | | // arguments will start at that minimal indent |
| | | 9770 | | (i == 0 ? sb : sb.Append(',')).NewLineIndent(argIndent); |
| | | 9771 | | var p = pars[i]; |
| | | 9772 | | var a = args[i]; |
| | | 9773 | | if (p.ParameterType.IsByRef && !a.IsConstantOrDefault()) |
| | | 9774 | | sb.Append(p.IsOut ? "out " : p.IsIn ? "in " : "ref "); |
| | | 9775 | | a.ToCSharpExpression(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9776 | | false, argIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9777 | | } |
| | | 9778 | | } |
| | | 9779 | | // for the different return and expression types wrapping the whole expression including the cas |
| | | 9780 | | return diffTypes ? sb.Append("))") : sb.Append(')'); |
| | | 9781 | | } |
| | | 9782 | | case ExpressionType.MemberAccess: |
| | | 9783 | | { |
| | | 9784 | | var x = (MemberExpression)e; |
| | | 9785 | | var inst = x.Expression; |
| | | 9786 | | if (inst != null) |
| | | 9787 | | { |
| | | 9788 | | // wrap the `new X().Y` into parens as `(new X()).Y` as it is may be a part of the bigger ex |
| | | 9789 | | if (inst.NodeType == ExpressionType.New) |
| | | 9790 | | sb.Append('('); |
| | | 9791 | | inst.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 9792 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9793 | | if (inst.NodeType == ExpressionType.New) |
| | | 9794 | | sb.Append(')'); |
| | | 9795 | | } |
| | | 9796 | | else |
| | | 9797 | | sb.Append(x.Member.DeclaringType.ToCode(stripNamespace, printType)); |
| | | 9798 | | return sb.Append('.').Append(x.Member.GetCSharpName()); |
| | | 9799 | | } |
| | | 9800 | | case ExpressionType.NewArrayBounds: |
| | | 9801 | | case ExpressionType.NewArrayInit: |
| | | 9802 | | { |
| | | 9803 | | var x = (NewArrayExpression)e; |
| | | 9804 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 9805 | | var nextIndent = lineIndent + indentSpaces; |
| | | 9806 | | |
| | | 9807 | | sb.Append("new ").Append(e.Type.GetElementType().ToCode(stripNamespace, printType)); |
| | | 9808 | | sb.Append(e.NodeType == ExpressionType.NewArrayInit ? "[]{" : "["); |
| | | 9809 | | |
| | | 9810 | | var exprs = x.Expressions; |
| | | 9811 | | if (exprs.Count == 1) |
| | | 9812 | | exprs[0].ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9813 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9814 | | else if (exprs.Count > 1) |
| | | 9815 | | for (var i = 0; i < exprs.Count; i++) |
| | | 9816 | | { |
| | | 9817 | | sb = (i > 0 ? sb.Append(',') : sb).NewLineIndent(nextIndent); |
| | | 9818 | | exprs[i].ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9819 | | nextIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9820 | | } |
| | | 9821 | | |
| | | 9822 | | return sb.Append(e.NodeType == ExpressionType.NewArrayInit ? "}" : "]"); |
| | | 9823 | | } |
| | | 9824 | | case ExpressionType.MemberInit: |
| | | 9825 | | { |
| | | 9826 | | var x = (MemberInitExpression)e; |
| | | 9827 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 9828 | | |
| | | 9829 | | x.NewExpression.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 9830 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9831 | | sb.NewLineIndent(lineIndent).Append('{'); |
| | | 9832 | | x.Bindings.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, lineIndent + indentSpaces, |
| | | 9833 | | return sb.NewLineIndent(lineIndent).Append('}'); |
| | | 9834 | | } |
| | | 9835 | | case ExpressionType.ListInit: |
| | | 9836 | | { |
| | | 9837 | | var x = (ListInitExpression)e; |
| | | 9838 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 9839 | | var elemIndent = lineIndent + indentSpaces; |
| | | 9840 | | |
| | | 9841 | | x.NewExpression.ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9842 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9843 | | |
| | | 9844 | | sb.NewLineIndent(lineIndent).Append('{'); |
| | | 9845 | | |
| | | 9846 | | var inits = x.Initializers; |
| | | 9847 | | for (var i = 0; i < inits.Count; ++i) |
| | | 9848 | | { |
| | | 9849 | | (i == 0 ? sb : sb.Append(", ")).NewLineIndent(elemIndent); |
| | | 9850 | | var elemInit = inits[i]; |
| | | 9851 | | var args = elemInit.Arguments; |
| | | 9852 | | if (args.Count == 1) |
| | | 9853 | | { |
| | | 9854 | | args.GetArgument(0).ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9855 | | elemIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9856 | | } |
| | | 9857 | | else |
| | | 9858 | | { |
| | | 9859 | | sb.Append('{'); |
| | | 9860 | | for (var j = 0; j < args.Count; ++j) |
| | | 9861 | | { |
| | | 9862 | | sb = j == 0 ? sb : sb.Append(", "); |
| | | 9863 | | args.GetArgument(j).ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9864 | | elemIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9865 | | } |
| | | 9866 | | sb.Append('}'); |
| | | 9867 | | } |
| | | 9868 | | } |
| | | 9869 | | return sb.NewLineIndent(lineIndent).Append("}"); |
| | | 9870 | | } |
| | | 9871 | | case ExpressionType.Lambda: |
| | | 9872 | | { |
| | | 9873 | | var x = (LambdaExpression)e; |
| | | 9874 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 9875 | | // The result should be something like this (taken from the #237) |
| | | 9876 | | // |
| | | 9877 | | // `(DeserializerDlg<Word>)((ref ReadOnlySequence<Byte> input, Word value, out Int64 bytesRead) |
| | | 9878 | | // |
| | | 9879 | | sb.Append('(').Append(e.Type.ToCode(stripNamespace, printType)).Append(")(("); |
| | | 9880 | | var lambdaMethod = x.Type.FindDelegateInvokeMethod(); |
| | | 9881 | | var count = x.Parameters.Count; |
| | | 9882 | | if (count > 0) |
| | | 9883 | | { |
| | | 9884 | | var pars = lambdaMethod.GetParameters(); |
| | | 9885 | | for (var i = 0; i < count; i++) |
| | | 9886 | | { |
| | | 9887 | | if (i > 0) |
| | | 9888 | | sb.Append(", "); |
| | | 9889 | | if (count > 1) |
| | | 9890 | | sb.NewLineIndent(lineIndent + indentSpaces); |
| | | 9891 | | |
| | | 9892 | | var pe = x.Parameters[i]; |
| | | 9893 | | var p = pars[i]; |
| | | 9894 | | if (pe.IsByRef) |
| | | 9895 | | sb.Append(p.IsOut ? "out " : p.IsIn ? "in " : "ref "); |
| | | 9896 | | var typeCode = pe.Type.ToCode(stripNamespace, printType); |
| | | 9897 | | sb.Append(typeCode).Append(' '); |
| | | 9898 | | sb.AppendName(pe, pe.Name, typeCode, ref named); |
| | | 9899 | | } |
| | | 9900 | | } |
| | | 9901 | | |
| | | 9902 | | sb.Append(") => //").Append(lambdaMethod.ReturnType.ToCode(stripNamespace, printType)); |
| | | 9903 | | var body = x.Body; |
| | | 9904 | | var bNodeType = body.NodeType; |
| | | 9905 | | var isReturnable = bNodeType.IsReturnable(); |
| | | 9906 | | var ignoresResult = x.ReturnType == typeof(void); |
| | | 9907 | | if (isReturnable & !ignoresResult) |
| | | 9908 | | { |
| | | 9909 | | var newLineIndent = lineIndent + indentSpaces; |
| | | 9910 | | sb.NewLineIndent(newLineIndent); |
| | | 9911 | | body.ToCSharpString(sb, EnclosedIn.LambdaBody, ref named, |
| | | 9912 | | newLineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode, lambdaMetho |
| | | 9913 | | } |
| | | 9914 | | else |
| | | 9915 | | { |
| | | 9916 | | sb.NewLineIndent(lineIndent).Append('{'); |
| | | 9917 | | // Body handles `;` itself |
| | | 9918 | | if (body is BlockExpression bb) |
| | | 9919 | | bb.BlockToCSharpString(sb, ref named, |
| | | 9920 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToC |
| | | 9921 | | inTheLastBlock: true, containerIgnoresResult: ignoresResult); |
| | | 9922 | | else |
| | | 9923 | | { |
| | | 9924 | | sb.NewLineIndent(lineIndent + indentSpaces); |
| | | 9925 | | body.ToCSharpString(sb, EnclosedIn.LambdaBody, ref named, |
| | | 9926 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToC |
| | | 9927 | | if (isReturnable) |
| | | 9928 | | sb.AppendSemicolonOnce(); |
| | | 9929 | | } |
| | | 9930 | | sb.NewLineIndent(lineIndent).Append('}'); |
| | | 9931 | | } |
| | | 9932 | | return sb.Append(')'); |
| | | 9933 | | } |
| | | 9934 | | case ExpressionType.Invoke: |
| | | 9935 | | { |
| | | 9936 | | var x = (InvocationExpression)e; |
| | | 9937 | | |
| | | 9938 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 9939 | | var argIndent = lineIndent + indentSpaces; |
| | | 9940 | | |
| | | 9941 | | // wrap the expression in the possibly excessive parentheses, because usually the expression is |
| | | 9942 | | // which should be cast to the proper delegate type, e.g. `(Func<int>)(() => 1)`, so we need an |
| | | 9943 | | var encloseInParens = x.Expression.NodeType != ExpressionType.Parameter; |
| | | 9944 | | if (encloseInParens) |
| | | 9945 | | sb.Append('('); |
| | | 9946 | | x.Expression.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 9947 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9948 | | if (encloseInParens) |
| | | 9949 | | sb.Append(')'); |
| | | 9950 | | |
| | | 9951 | | // Indicates the lambda invocation more explicitly with the new line, |
| | | 9952 | | // Keep Invoke indentation the same as the lambda closing brace indicating their bond |
| | | 9953 | | if (x.Expression.NodeType == ExpressionType.Lambda) |
| | | 9954 | | sb.NewLineIndent(lineIndent); |
| | | 9955 | | sb.Append(".Invoke("); |
| | | 9956 | | |
| | | 9957 | | for (var i = 0; i < x.Arguments.Count; i++) |
| | | 9958 | | { |
| | | 9959 | | sb = i > 0 ? sb.Append(',') : sb; |
| | | 9960 | | sb.NewLineIndent(argIndent); |
| | | 9961 | | x.Arguments[i].ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9962 | | argIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9963 | | } |
| | | 9964 | | return sb.Append(")"); |
| | | 9965 | | } |
| | | 9966 | | case ExpressionType.Conditional: |
| | | 9967 | | { |
| | | 9968 | | var x = (ConditionalExpression)e; |
| | | 9969 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 9970 | | |
| | | 9971 | | if (e.Type == typeof(void)) // otherwise output as ternary expression |
| | | 9972 | | { |
| | | 9973 | | sb.Append("if ("); |
| | | 9974 | | x.Test.ToCSharpString(sb, EnclosedIn.IfTest, ref named, |
| | | 9975 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9976 | | sb.Append(')'); |
| | | 9977 | | |
| | | 9978 | | x.IfTrue.ToCSharpBlock(sb, ref named, |
| | | 9979 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9980 | | |
| | | 9981 | | if (x.IfFalse.NodeType != ExpressionType.Default || x.IfFalse.Type != typeof(void)) |
| | | 9982 | | { |
| | | 9983 | | sb.NewLineIndent(lineIndent).Append("else"); |
| | | 9984 | | x.IfFalse.ToCSharpBlock(sb, ref named, |
| | | 9985 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9986 | | } |
| | | 9987 | | } |
| | | 9988 | | else |
| | | 9989 | | { |
| | | 9990 | | var avoidParens = AvoidParens(enclosedIn); |
| | | 9991 | | sb = avoidParens ? sb : sb.Append('('); |
| | | 9992 | | |
| | | 9993 | | x.Test.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 9994 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 9995 | | |
| | | 9996 | | sb.Append(" ? "); |
| | | 9997 | | var doNewLine = !x.IfTrue.IsParamOrConstantOrDefault(); |
| | | 9998 | | x.IfTrue.ToCSharpExpression(sb, EnclosedIn.AvoidParens, ref named, |
| | | 9999 | | doNewLine, lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecogn |
| | | 10000 | | |
| | | 10001 | | sb.Append(" : "); |
| | | 10002 | | doNewLine = !x.IfFalse.IsParamOrConstantOrDefault(); |
| | | 10003 | | x.IfFalse.ToCSharpExpression(sb, EnclosedIn.AvoidParens, ref named, |
| | | 10004 | | doNewLine, lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecogn |
| | | 10005 | | |
| | | 10006 | | sb = avoidParens ? sb : sb.Append(')'); |
| | | 10007 | | } |
| | | 10008 | | return sb; |
| | | 10009 | | } |
| | | 10010 | | case ExpressionType.Block: |
| | | 10011 | | { |
| | | 10012 | | return ((BlockExpression)e).BlockToCSharpString(sb, ref named, |
| | | 10013 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10014 | | } |
| | | 10015 | | case ExpressionType.Loop: |
| | | 10016 | | { |
| | | 10017 | | var x = (LoopExpression)e; |
| | | 10018 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 10019 | | |
| | | 10020 | | sb.NewLineIndent(lineIndent).Append("while (true)"); |
| | | 10021 | | sb.NewLineIndent(lineIndent).Append("{"); |
| | | 10022 | | |
| | | 10023 | | if (x.ContinueLabel != null) |
| | | 10024 | | { |
| | | 10025 | | sb.NewLineIndent(lineIndent); |
| | | 10026 | | sb.AppendLabelName(x.ContinueLabel, ref named) |
| | | 10027 | | .Append(":;"); // the label is with the semicolon, because it will invalid code at the e |
| | | 10028 | | } |
| | | 10029 | | |
| | | 10030 | | sb.NewLineIndent(lineIndent + indentSpaces); |
| | | 10031 | | x.Body.ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 10032 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10033 | | |
| | | 10034 | | sb.NewLineIndent(lineIndent).Append("}"); |
| | | 10035 | | |
| | | 10036 | | // the label is with the semicolon, because it will invalid code at the end of lambda without it |
| | | 10037 | | if (x.BreakLabel != null) |
| | | 10038 | | sb.NewLineIndent(lineIndent).AppendLabelName(x.BreakLabel, ref named).Append(":;"); |
| | | 10039 | | |
| | | 10040 | | return sb; |
| | | 10041 | | } |
| | | 10042 | | case ExpressionType.Index: |
| | | 10043 | | { |
| | | 10044 | | var x = (IndexExpression)e; |
| | | 10045 | | x.Object.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10046 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10047 | | |
| | | 10048 | | var isStandardIndexer = x.Indexer == null || x.Indexer.Name == "Item"; |
| | | 10049 | | if (isStandardIndexer) |
| | | 10050 | | sb.Append('['); |
| | | 10051 | | else |
| | | 10052 | | sb.Append('.').Append(x.Indexer.Name).Append('('); |
| | | 10053 | | |
| | | 10054 | | for (var i = 0; i < x.Arguments.Count; i++) |
| | | 10055 | | x.Arguments[i].ToCSharpString(i > 0 ? sb.Append(", ") : sb, EnclosedIn.AvoidParens, ref name |
| | | 10056 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode) |
| | | 10057 | | |
| | | 10058 | | return sb.Append(isStandardIndexer ? ']' : ')'); |
| | | 10059 | | } |
| | | 10060 | | case ExpressionType.Try: |
| | | 10061 | | { |
| | | 10062 | | var x = (TryExpression)e; |
| | | 10063 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 10064 | | |
| | | 10065 | | var returnsValue = e.Type != typeof(void); |
| | | 10066 | | void PrintPart(Expression part, ref SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named) |
| | | 10067 | | { |
| | | 10068 | | var incIndent = lineIndent + indentSpaces; |
| | | 10069 | | if (part is BlockExpression pb) |
| | | 10070 | | pb.BlockToCSharpString(sb, ref named, |
| | | 10071 | | incIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode, inTheLastBl |
| | | 10072 | | else |
| | | 10073 | | { |
| | | 10074 | | sb.NewLineIndent(incIndent); |
| | | 10075 | | var isReturnable = returnsValue && part.NodeType.IsReturnable() && |
| | | 10076 | | // todo: @improve right now it is a hack - usually to Assign something means no retu |
| | | 10077 | | !part.NodeType.IsAssignNodeType(); |
| | | 10078 | | if (isReturnable) |
| | | 10079 | | sb.Append("return "); |
| | | 10080 | | part.ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 10081 | | incIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10082 | | sb.AppendSemicolonOnce(); |
| | | 10083 | | } |
| | | 10084 | | } |
| | | 10085 | | |
| | | 10086 | | sb.AppendNewLineOnce(); |
| | | 10087 | | |
| | | 10088 | | var isTryFault = x.Fault != null; |
| | | 10089 | | if (isTryFault) |
| | | 10090 | | { |
| | | 10091 | | sb.Append("var fault = 0; // emulating try-fault"); |
| | | 10092 | | sb.NewLineIndent(lineIndent); |
| | | 10093 | | } |
| | | 10094 | | |
| | | 10095 | | sb.Append("try"); |
| | | 10096 | | sb.NewLineIndent(lineIndent).Append('{'); |
| | | 10097 | | PrintPart(x.Body, ref named); |
| | | 10098 | | sb.NewLineIndent(lineIndent).Append('}'); |
| | | 10099 | | if (isTryFault) |
| | | 10100 | | sb.NewLineIndent(lineIndent).Append("catch (Exception) when (fault++ != 0) {}"); |
| | | 10101 | | |
| | | 10102 | | var handlers = x.Handlers; |
| | | 10103 | | if (handlers != null && handlers.Count > 0) |
| | | 10104 | | { |
| | | 10105 | | for (var i = 0; i < handlers.Count; i++) |
| | | 10106 | | { |
| | | 10107 | | var h = handlers[i]; |
| | | 10108 | | sb.NewLineIndent(lineIndent).Append("catch ("); |
| | | 10109 | | var exTypeName = h.Test.ToCode(stripNamespace, printType); |
| | | 10110 | | sb.Append(exTypeName); |
| | | 10111 | | |
| | | 10112 | | var hVar = h.Variable; |
| | | 10113 | | if (hVar != null) |
| | | 10114 | | sb.Append(' ').AppendName(hVar, hVar.Name, hVar.Type.ToCode(stripNamespace, printTyp |
| | | 10115 | | |
| | | 10116 | | sb.Append(')'); |
| | | 10117 | | if (h.Filter != null) |
| | | 10118 | | { |
| | | 10119 | | sb.Append("when ("); |
| | | 10120 | | sb.NewLineIndent(lineIndent); |
| | | 10121 | | h.Filter.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10122 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognize |
| | | 10123 | | sb.NewLineIndent(lineIndent).Append(')'); |
| | | 10124 | | } |
| | | 10125 | | |
| | | 10126 | | sb.NewLineIndent(lineIndent).Append('{'); |
| | | 10127 | | PrintPart(h.Body, ref named); |
| | | 10128 | | sb.NewLineIndent(lineIndent).Append('}'); |
| | | 10129 | | } |
| | | 10130 | | } |
| | | 10131 | | |
| | | 10132 | | var faultOrFinally = x.Fault ?? x.Finally; |
| | | 10133 | | if (faultOrFinally != null) |
| | | 10134 | | { |
| | | 10135 | | sb.NewLineIndent(lineIndent).Append("finally"); |
| | | 10136 | | sb.NewLineIndent(lineIndent).Append('{'); |
| | | 10137 | | if (isTryFault) sb.Append("if (fault != 0) {"); |
| | | 10138 | | |
| | | 10139 | | PrintPart(faultOrFinally, ref named); |
| | | 10140 | | |
| | | 10141 | | sb.NewLineIndent(lineIndent).Append('}'); |
| | | 10142 | | if (isTryFault) sb.Append('}'); |
| | | 10143 | | } |
| | | 10144 | | return sb; |
| | | 10145 | | } |
| | | 10146 | | case ExpressionType.Label: |
| | | 10147 | | { |
| | | 10148 | | // we don't output the default value and relying on the Goto Return `return` instead, otherwise |
| | | 10149 | | return sb.NewLineIndent(lineIndent).AppendLabelName(((LabelExpression)e).Target, ref named).Appe |
| | | 10150 | | } |
| | | 10151 | | case ExpressionType.Goto: |
| | | 10152 | | { |
| | | 10153 | | var gt = (GotoExpression)e; |
| | | 10154 | | if (gt.Kind == GotoExpressionKind.Return || gt.Value != null) |
| | | 10155 | | { |
| | | 10156 | | var gtValue = gt.Value; |
| | | 10157 | | if (gtValue == null) |
| | | 10158 | | return enclosedIn == EnclosedIn.Return ? sb.Append(";") : sb.Append("return;"); |
| | | 10159 | | |
| | | 10160 | | var isReturnable = gtValue.NodeType.IsReturnable(); |
| | | 10161 | | if (isReturnable & enclosedIn != EnclosedIn.Return) |
| | | 10162 | | sb.Append("return "); |
| | | 10163 | | |
| | | 10164 | | gtValue.ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 10165 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10166 | | |
| | | 10167 | | if (isReturnable) |
| | | 10168 | | sb.AppendSemicolonOnce(); |
| | | 10169 | | return sb; |
| | | 10170 | | } |
| | | 10171 | | return sb.Append("goto ").AppendLabelName(gt.Target, ref named); |
| | | 10172 | | } |
| | | 10173 | | case ExpressionType.Switch: |
| | | 10174 | | { |
| | | 10175 | | var x = (SwitchExpression)e; |
| | | 10176 | | |
| | | 10177 | | lineIndent = sb.GetRealLineIndent(lineIndent); |
| | | 10178 | | |
| | | 10179 | | sb.Append("switch ("); |
| | | 10180 | | x.SwitchValue.ToCSharpString(sb, EnclosedIn.AvoidParens, ref named, |
| | | 10181 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10182 | | sb.Append(')'); |
| | | 10183 | | sb.NewLineIndent(lineIndent).Append('{'); |
| | | 10184 | | |
| | | 10185 | | var caseValueIndent = lineIndent + indentSpaces; |
| | | 10186 | | var caseBodyIndent = caseValueIndent + indentSpaces; |
| | | 10187 | | foreach (var cs in x.Cases) |
| | | 10188 | | { |
| | | 10189 | | foreach (var tv in cs.TestValues) |
| | | 10190 | | { |
| | | 10191 | | sb.NewLineIndent(caseValueIndent).Append("case "); |
| | | 10192 | | tv.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10193 | | caseValueIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Appen |
| | | 10194 | | } |
| | | 10195 | | |
| | | 10196 | | sb.NewLineIndent(caseBodyIndent); |
| | | 10197 | | var caseBody = cs.Body; |
| | | 10198 | | if (enclosedIn == EnclosedIn.LambdaBody) |
| | | 10199 | | { |
| | | 10200 | | if (caseBody is BlockExpression bl) |
| | | 10201 | | bl.BlockToCSharpString(sb, ref named, |
| | | 10202 | | caseBodyIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode, in |
| | | 10203 | | else |
| | | 10204 | | { |
| | | 10205 | | var bodyIn = caseBody.Type != typeof(void) ? EnclosedIn.Return : EnclosedIn.AvoidPar |
| | | 10206 | | caseBody.ToCSharpString(bodyIn == EnclosedIn.Return ? sb.Append("return ") : sb, bod |
| | | 10207 | | caseBodyIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Ap |
| | | 10208 | | } |
| | | 10209 | | } |
| | | 10210 | | else |
| | | 10211 | | caseBody.ToCSharpString(sb, enclosedIn, ref named, |
| | | 10212 | | caseBodyIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Append |
| | | 10213 | | } |
| | | 10214 | | |
| | | 10215 | | if (x.DefaultBody != null) |
| | | 10216 | | { |
| | | 10217 | | var defaultBody = x.DefaultBody; |
| | | 10218 | | sb.NewLineIndent(caseValueIndent).Append("default:"); |
| | | 10219 | | sb.NewLineIndent(caseBodyIndent); |
| | | 10220 | | if (enclosedIn == EnclosedIn.LambdaBody) |
| | | 10221 | | { |
| | | 10222 | | if (defaultBody is BlockExpression bl) |
| | | 10223 | | bl.BlockToCSharpString(sb, ref named, |
| | | 10224 | | caseBodyIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode, in |
| | | 10225 | | else |
| | | 10226 | | { |
| | | 10227 | | var bodyIn = defaultBody.Type != typeof(void) ? EnclosedIn.Return : EnclosedIn.Avoid |
| | | 10228 | | defaultBody.ToCSharpString(bodyIn == EnclosedIn.Return ? sb.Append("return ") : sb, |
| | | 10229 | | caseBodyIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Ap |
| | | 10230 | | } |
| | | 10231 | | } |
| | | 10232 | | else |
| | | 10233 | | defaultBody.ToCSharpString(sb, enclosedIn, ref named, |
| | | 10234 | | caseBodyIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Append |
| | | 10235 | | } |
| | | 10236 | | |
| | | 10237 | | return sb.NewLineIndent(lineIndent).Append("}"); |
| | | 10238 | | } |
| | | 10239 | | case ExpressionType.Default: |
| | | 10240 | | return e.Type == typeof(void) |
| | | 10241 | | ? sb // `default(void)` does not make sense in the C# |
| | | 10242 | | : NullConstantOrDefaultToCSharpString(e.Type, sb, enclosedIn, stripNamespace, printType); |
| | | 10243 | | |
| | | 10244 | | case ExpressionType.TypeIs: |
| | | 10245 | | case ExpressionType.TypeEqual: |
| | | 10246 | | { |
| | | 10247 | | var x = (TypeBinaryExpression)e; |
| | | 10248 | | sb.Append('('); |
| | | 10249 | | // Use C# `is T` even for TypeEqual if the two are equivalent (this syntax is nicer) |
| | | 10250 | | // IsSealed returns true for arrays, but arrays are cursed and don't behave like sealed classes |
| | | 10251 | | if (x.NodeType == ExpressionType.TypeIs || (x.TypeOperand.IsSealed && !x.TypeOperand.IsArray)) |
| | | 10252 | | { |
| | | 10253 | | x.Expression.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10254 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10255 | | sb.Append(" is ").Append(x.TypeOperand.ToCode(stripNamespace, printType)); |
| | | 10256 | | } |
| | | 10257 | | else |
| | | 10258 | | { |
| | | 10259 | | x.Expression.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10260 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10261 | | sb.Append(".GetType() == typeof(").Append(x.TypeOperand.ToCode(stripNamespace, printType)).A |
| | | 10262 | | |
| | | 10263 | | } |
| | | 10264 | | return sb.Append(')'); |
| | | 10265 | | } |
| | | 10266 | | case ExpressionType.Coalesce: |
| | | 10267 | | { |
| | | 10268 | | var x = (BinaryExpression)e; |
| | | 10269 | | x.Left.ToCSharpExpression(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10270 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10271 | | sb.Append(" ?? "); |
| | | 10272 | | x.Right.ToCSharpExpression(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10273 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10274 | | return sb; |
| | | 10275 | | } |
| | | 10276 | | case ExpressionType.Extension: |
| | | 10277 | | { |
| | | 10278 | | var reduced = e.Reduce(); // proceed with the reduced expression |
| | | 10279 | | return reduced.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10280 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10281 | | } |
| | | 10282 | | case ExpressionType.Dynamic: |
| | | 10283 | | case ExpressionType.RuntimeVariables: |
| | | 10284 | | case ExpressionType.DebugInfo: |
| | | 10285 | | case ExpressionType.Quote: |
| | | 10286 | | { |
| | | 10287 | | return sb.NewLineIndent(lineIndent).Append(NotSupportedExpression).Append(e.NodeType).NewLineInd |
| | | 10288 | | } |
| | | 10289 | | default: |
| | | 10290 | | { |
| | | 10291 | | var avoidParens = AvoidParens(enclosedIn); |
| | | 10292 | | |
| | | 10293 | | var name = Enum.GetName(typeof(ExpressionType), e.NodeType); |
| | | 10294 | | if (e is UnaryExpression u) |
| | | 10295 | | { |
| | | 10296 | | var op = u.Operand; |
| | | 10297 | | switch (e.NodeType) |
| | | 10298 | | { |
| | | 10299 | | case ExpressionType.ArrayLength: |
| | | 10300 | | return op.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10301 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode) |
| | | 10302 | | .Append(".Length"); |
| | | 10303 | | |
| | | 10304 | | case ExpressionType.Not: // either the bool not or the binary not |
| | | 10305 | | return op.ToCSharpString( |
| | | 10306 | | e.Type == typeof(bool) ? sb.Append("!(") : sb.Append("~("), enclosedIn, ref name |
| | | 10307 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode) |
| | | 10308 | | .Append(')'); |
| | | 10309 | | |
| | | 10310 | | case ExpressionType.Convert: |
| | | 10311 | | case ExpressionType.ConvertChecked: |
| | | 10312 | | if (e.Type == op.Type || e.Type == typeof(Enum) && op.Type.IsEnum) |
| | | 10313 | | return op.ToCSharpExpression(sb, EnclosedIn.AvoidParens, ref named, |
| | | 10314 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToC |
| | | 10315 | | |
| | | 10316 | | sb = avoidParens ? sb.Append('(') : sb.Append("(("); |
| | | 10317 | | sb.Append(e.Type.ToCode(stripNamespace, printType)); |
| | | 10318 | | sb.Append(')'); |
| | | 10319 | | sb = op.ToCSharpExpression(sb, EnclosedIn.AvoidParens, ref named, |
| | | 10320 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode) |
| | | 10321 | | return avoidParens ? sb : sb.Append(')'); |
| | | 10322 | | |
| | | 10323 | | case ExpressionType.Decrement: |
| | | 10324 | | case ExpressionType.Increment: |
| | | 10325 | | if (!avoidParens) sb.Append('('); |
| | | 10326 | | sb = op.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10327 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10328 | | sb = e.NodeType == ExpressionType.Decrement ? sb.Append(" - 1") : sb.Append(" + 1"); |
| | | 10329 | | if (!avoidParens) sb.Append(')'); |
| | | 10330 | | return sb; |
| | | 10331 | | |
| | | 10332 | | case ExpressionType.Negate: |
| | | 10333 | | case ExpressionType.NegateChecked: |
| | | 10334 | | if (!avoidParens) sb.Append('('); |
| | | 10335 | | op.ToCSharpString(sb.Append('-'), EnclosedIn.ParensByDefault, ref named, |
| | | 10336 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10337 | | if (!avoidParens) sb.Append(')'); |
| | | 10338 | | return sb; |
| | | 10339 | | |
| | | 10340 | | case ExpressionType.PostIncrementAssign: |
| | | 10341 | | case ExpressionType.PreIncrementAssign: |
| | | 10342 | | case ExpressionType.PostDecrementAssign: |
| | | 10343 | | case ExpressionType.PreDecrementAssign: |
| | | 10344 | | if (!avoidParens) sb.Append('('); |
| | | 10345 | | sb = e.NodeType == ExpressionType.PreIncrementAssign ? sb.Append("++") : e.NodeType |
| | | 10346 | | op.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10347 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10348 | | sb = e.NodeType == ExpressionType.PostIncrementAssign ? sb.Append("++") : e.NodeType |
| | | 10349 | | if (!avoidParens) sb.Append(')'); |
| | | 10350 | | return sb; |
| | | 10351 | | |
| | | 10352 | | case ExpressionType.IsTrue: |
| | | 10353 | | return op.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10354 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Append |
| | | 10355 | | |
| | | 10356 | | case ExpressionType.IsFalse: |
| | | 10357 | | return op.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10358 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Append |
| | | 10359 | | |
| | | 10360 | | case ExpressionType.TypeAs: |
| | | 10361 | | case ExpressionType.TypeIs: |
| | | 10362 | | if (!avoidParens) sb.Append('('); |
| | | 10363 | | op.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10364 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10365 | | sb = e.NodeType == ExpressionType.TypeAs ? sb.Append(" as ") : sb.Append(" is "); |
| | | 10366 | | sb.Append(e.Type.ToCode(stripNamespace, printType)); |
| | | 10367 | | if (!avoidParens) sb.Append(')'); |
| | | 10368 | | return sb; |
| | | 10369 | | |
| | | 10370 | | case ExpressionType.Throw: |
| | | 10371 | | return op is null ? sb.Append("throw") : |
| | | 10372 | | op.ToCSharpString(sb.Append("throw "), EnclosedIn.ParensByDefault, ref named, |
| | | 10373 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10374 | | |
| | | 10375 | | case ExpressionType.Unbox: // output it as the cast |
| | | 10376 | | sb = avoidParens ? sb.Append("(") : sb.Append("(("); |
| | | 10377 | | sb.Append(e.Type.ToCode(stripNamespace, printType)).Append(')'); |
| | | 10378 | | op.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10379 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10380 | | return avoidParens ? sb : sb.Append(')'); |
| | | 10381 | | |
| | | 10382 | | default: |
| | | 10383 | | return sb.Append(e.ToString()); // falling back ro ToString as a closest to C# code |
| | | 10384 | | } |
| | | 10385 | | } |
| | | 10386 | | |
| | | 10387 | | if (e is BinaryExpression b) |
| | | 10388 | | { |
| | | 10389 | | var nodeType = e.NodeType; |
| | | 10390 | | if (nodeType == ExpressionType.ArrayIndex) |
| | | 10391 | | { |
| | | 10392 | | var arrInParens = b.Left.NodeType != ExpressionType.Parameter; |
| | | 10393 | | if (arrInParens) sb.Append('('); |
| | | 10394 | | b.Left.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10395 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10396 | | if (arrInParens) sb.Append(')'); |
| | | 10397 | | return b.Right.ToCSharpString(sb.Append("["), EnclosedIn.ParensByDefault, ref named, |
| | | 10398 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Append("]" |
| | | 10399 | | } |
| | | 10400 | | |
| | | 10401 | | if (nodeType.IsAssignNodeType()) |
| | | 10402 | | { |
| | | 10403 | | // todo: @perf handle the right part is condition with the blocks for If and/or Else, e. |
| | | 10404 | | if (b.Right is BlockExpression rightBlock) // it is valid to assign the block and it is |
| | | 10405 | | { |
| | | 10406 | | sb.Append("// { The block result will be assigned to `") |
| | | 10407 | | .Append(b.Left.ToCSharpString(new StringBuilder(), EnclosedIn.ParensByDefault, r |
| | | 10408 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode)) |
| | | 10409 | | .Append('`'); |
| | | 10410 | | rightBlock.BlockToCSharpString(sb, ref named, |
| | | 10411 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode, false, |
| | | 10412 | | return sb.NewLineIndent(lineIndent).Append("// } end of block assignment"); |
| | | 10413 | | } |
| | | 10414 | | |
| | | 10415 | | b.Left.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10416 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10417 | | if (nodeType == ExpressionType.PowerAssign) |
| | | 10418 | | { |
| | | 10419 | | sb.Append(" = System.Math.Pow("); |
| | | 10420 | | b.Left.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10421 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Append |
| | | 10422 | | return b.Right.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10423 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Append |
| | | 10424 | | } |
| | | 10425 | | |
| | | 10426 | | sb.Append(OperatorToCSharpString(nodeType)); |
| | | 10427 | | |
| | | 10428 | | if (b.Left is ParameterExpression leftParam && leftParam.IsByRef && !b.Right.IsConstantO |
| | | 10429 | | sb.Append("ref "); |
| | | 10430 | | |
| | | 10431 | | return b.Right.ToCSharpExpression(sb, EnclosedIn.AvoidParens, ref named, |
| | | 10432 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10433 | | } |
| | | 10434 | | |
| | | 10435 | | sb = !avoidParens ? sb.Append('(') : sb; |
| | | 10436 | | b.Left.ToCSharpExpression(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10437 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10438 | | |
| | | 10439 | | if (nodeType == ExpressionType.Equal) |
| | | 10440 | | { |
| | | 10441 | | if (b.Right is ConstantExpression r && r.Value is bool rb && rb) |
| | | 10442 | | return sb; |
| | | 10443 | | sb.Append(" == "); |
| | | 10444 | | } |
| | | 10445 | | else if (nodeType == ExpressionType.NotEqual) |
| | | 10446 | | { |
| | | 10447 | | if (b.Right is ConstantExpression r && r.Value is bool rb) |
| | | 10448 | | return rb ? sb.Append(" == false") : sb; |
| | | 10449 | | sb.Append(" != "); |
| | | 10450 | | } |
| | | 10451 | | else |
| | | 10452 | | sb.Append(OperatorToCSharpString(nodeType)); |
| | | 10453 | | |
| | | 10454 | | b.Right.ToCSharpExpression(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10455 | | false, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10456 | | return !avoidParens ? sb.Append(')') : sb; |
| | | 10457 | | } |
| | | 10458 | | |
| | | 10459 | | return sb.Append(e.ToString()); // falling back ToString and hoping for the best |
| | | 10460 | | } |
| | | 10461 | | } |
| | | 10462 | | } |
| | | 10463 | | |
| | | 10464 | | private static bool AvoidParens(EnclosedIn enclosedIn) => |
| | | 10465 | | enclosedIn == EnclosedIn.AvoidParens | |
| | | 10466 | | enclosedIn == EnclosedIn.LambdaBody | |
| | | 10467 | | enclosedIn == EnclosedIn.Block | // statement in a block don't need the parens as well |
| | | 10468 | | enclosedIn == EnclosedIn.Return; |
| | | 10469 | | |
| | | 10470 | | private static StringBuilder ToCSharpBlock(this Expression expr, StringBuilder sb, ref SmallList<NamedWithIndex, |
| | | 10471 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 10472 | | { |
| | | 10473 | | sb.NewLineIndent(lineIndent).Append('{'); |
| | | 10474 | | if (expr is BlockExpression fb) |
| | | 10475 | | fb.BlockToCSharpString(sb, ref named, |
| | | 10476 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode, inTheLastBl |
| | | 10477 | | else |
| | | 10478 | | { |
| | | 10479 | | sb.NewLineIndent(lineIndent + indentSpaces); |
| | | 10480 | | sb = expr?.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10481 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode) ?? sb.Appen |
| | | 10482 | | sb.AppendSemicolonOnce(); |
| | | 10483 | | } |
| | | 10484 | | return sb.NewLineIndent(lineIndent).Append('}'); |
| | | 10485 | | } |
| | | 10486 | | |
| | | 10487 | | private static StringBuilder ToCSharpExpression(this Expression expr, |
| | | 10488 | | StringBuilder sb, EnclosedIn enclosedIn, ref SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named, bool n |
| | | 10489 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 10490 | | { |
| | | 10491 | | if (!expr.NodeType.IsBlockLike()) |
| | | 10492 | | { |
| | | 10493 | | if (!newLineExpr) |
| | | 10494 | | return expr.ToCSharpString(sb, enclosedIn, ref named, |
| | | 10495 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10496 | | |
| | | 10497 | | sb.NewLineIndent(lineIndent); |
| | | 10498 | | return expr.ToCSharpString(sb, enclosedIn, ref named, |
| | | 10499 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10500 | | } |
| | | 10501 | | |
| | | 10502 | | InsertTopFFuncDefinitionOnce(sb); |
| | | 10503 | | sb.NewLineIndent(lineIndent).Append("__f(() => {"); |
| | | 10504 | | if (expr is BlockExpression bl) |
| | | 10505 | | bl.BlockToCSharpString(sb, ref named, |
| | | 10506 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode, inTheLastBl |
| | | 10507 | | else |
| | | 10508 | | { |
| | | 10509 | | sb.NewLineIndent(lineIndent + indentSpaces); |
| | | 10510 | | if (expr != null) |
| | | 10511 | | expr.ToCSharpString(sb, EnclosedIn.LambdaBody, ref named, |
| | | 10512 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10513 | | else |
| | | 10514 | | sb.Append("null"); |
| | | 10515 | | |
| | | 10516 | | } |
| | | 10517 | | return sb.NewLineIndent(lineIndent).Append("})"); |
| | | 10518 | | } |
| | | 10519 | | |
| | | 10520 | | internal static StringBuilder AppendSemicolonOnce(this StringBuilder sb) => |
| | | 10521 | | sb[sb.Length - 1] != ';' ? sb.Append(";") : sb; |
| | | 10522 | | |
| | | 10523 | | internal static StringBuilder AppendNewLineOnce(this StringBuilder sb) |
| | | 10524 | | { |
| | | 10525 | | for (var end = sb.Length - 1; end >= 0; --end) |
| | | 10526 | | { |
| | | 10527 | | if (sb[end] == '\n') |
| | | 10528 | | return sb; // return the unchanged sb when new line is already present |
| | | 10529 | | if (sb[end] != ' ') // skip spaces if any |
| | | 10530 | | break; |
| | | 10531 | | } |
| | | 10532 | | return sb.Append(NewLine); |
| | | 10533 | | } |
| | | 10534 | | |
| | | 10535 | | // Returns the number of consecutive spaces from the current position, |
| | | 10536 | | // or from the first non-space character to the prev newline. |
| | | 10537 | | // e.g. for `\n foo.Bar = ` and for `\n ` indent is 4 |
| | | 10538 | | internal static int GetRealLineIndent(this StringBuilder sb, int defaultIndent) |
| | | 10539 | | { |
| | | 10540 | | var lastSpacePos = -1; |
| | | 10541 | | // go back from the last char in the builder |
| | | 10542 | | for (var pos = sb.Length - 1; pos >= 0; --pos) |
| | | 10543 | | { |
| | | 10544 | | var ch = sb[pos]; |
| | | 10545 | | if (ch == '\n') |
| | | 10546 | | return lastSpacePos == -1 ? defaultIndent : lastSpacePos - pos; |
| | | 10547 | | |
| | | 10548 | | if (ch != ' ') |
| | | 10549 | | lastSpacePos = -1; // reset space position when non-space char is found |
| | | 10550 | | else if (lastSpacePos == -1) |
| | | 10551 | | lastSpacePos = pos; // set the last space position |
| | | 10552 | | } |
| | | 10553 | | return defaultIndent; |
| | | 10554 | | } |
| | | 10555 | | |
| | | 10556 | | private const string NotSupportedExpression = "// NOT_SUPPORTED_EXPRESSION: "; |
| | | 10557 | | |
| | | 10558 | | private static StringBuilder ToCSharpString(this IReadOnlyList<MemberBinding> bindings, |
| | | 10559 | | StringBuilder sb, EnclosedIn enclosedIn, ref SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named, |
| | | 10560 | | int lineIndent = 0, bool stripNamespace = false, Func<Type, string, string> printType = null, int indentSpac |
| | | 10561 | | { |
| | | 10562 | | var count = bindings.Count; |
| | | 10563 | | for (var i = 0; i < count; i++) |
| | | 10564 | | { |
| | | 10565 | | var b = bindings[i]; |
| | | 10566 | | sb.NewLineIndent(lineIndent); |
| | | 10567 | | sb.Append(b.Member.Name).Append(" = "); |
| | | 10568 | | |
| | | 10569 | | if (b is MemberAssignment ma) |
| | | 10570 | | { |
| | | 10571 | | ma.Expression.ToCSharpString(sb, EnclosedIn.ParensByDefault, ref named, |
| | | 10572 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10573 | | } |
| | | 10574 | | else if (b is MemberMemberBinding mmb) |
| | | 10575 | | { |
| | | 10576 | | sb.Append("{"); |
| | | 10577 | | mmb.Bindings.ToCSharpString(sb, enclosedIn, ref named, |
| | | 10578 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10579 | | sb.NewLineIndent(lineIndent + indentSpaces).Append("}"); |
| | | 10580 | | } |
| | | 10581 | | else if (b is MemberListBinding mlb) |
| | | 10582 | | { |
| | | 10583 | | sb.Append("{"); |
| | | 10584 | | var elemInits = mlb.Initializers; |
| | | 10585 | | var elemCount = elemInits.Count; |
| | | 10586 | | for (var e = 0; e < elemCount; e++) |
| | | 10587 | | { |
| | | 10588 | | var args = elemInits[e].Arguments; |
| | | 10589 | | sb.NewLineIndent(lineIndent + indentSpaces); |
| | | 10590 | | var manyArgs = args.Count > 1; |
| | | 10591 | | if (manyArgs) |
| | | 10592 | | sb.Append("("); |
| | | 10593 | | |
| | | 10594 | | var n = 0; |
| | | 10595 | | foreach (var arg in args) |
| | | 10596 | | arg.ToCSharpString((++n > 1 ? sb.Append(", ") : sb), EnclosedIn.ParensByDefault, ref named, |
| | | 10597 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode) |
| | | 10598 | | |
| | | 10599 | | if (manyArgs) |
| | | 10600 | | sb.Append(")"); |
| | | 10601 | | |
| | | 10602 | | if (e < elemCount - 1) |
| | | 10603 | | sb.Append(","); |
| | | 10604 | | } |
| | | 10605 | | sb.NewLineIndent(lineIndent + indentSpaces).Append("}"); |
| | | 10606 | | } |
| | | 10607 | | |
| | | 10608 | | // don't place comma after the last binding |
| | | 10609 | | if (i < count - 1) |
| | | 10610 | | sb.Append(","); |
| | | 10611 | | } |
| | | 10612 | | return sb; |
| | | 10613 | | } |
| | | 10614 | | |
| | | 10615 | | private static StringBuilder BlockToCSharpString(this BlockExpression b, StringBuilder sb, |
| | | 10616 | | ref SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named, |
| | | 10617 | | int lineIndent = 0, bool stripNamespace = false, Func<Type, string, string> printType = null, int indentSpac |
| | | 10618 | | ObjectToCode notRecognizedToCode = null, bool inTheLastBlock = false, BinaryExpression blockResultAssignment |
| | | 10619 | | bool containerIgnoresResult = false // in case of the container is lambda which is the Action/void delegate |
| | | 10620 | | ) |
| | | 10621 | | { |
| | | 10622 | | var vars = b.Variables.AsList(); |
| | | 10623 | | var exprs = b.Expressions; |
| | | 10624 | | |
| | | 10625 | | // handling the special case, AutoMapper like using the tmp variable to reassign the property |
| | | 10626 | | if (vars.Count == 1 & exprs.Count == 2 && |
| | | 10627 | | exprs[0] is BinaryExpression st0 && st0.NodeType == ExpressionType.Assign && |
| | | 10628 | | exprs[1] is BinaryExpression st1 && st1.NodeType == ExpressionType.Assign && |
| | | 10629 | | st0.Left == vars[0] && st1.Right == vars[0]) |
| | | 10630 | | return Assign(st1.Left, st0.Right).ToCSharpString(sb.NewLineIndent(lineIndent), |
| | | 10631 | | EnclosedIn.Block, ref named, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCod |
| | | 10632 | | .AppendSemicolonOnce(); |
| | | 10633 | | |
| | | 10634 | | foreach (var v in vars) |
| | | 10635 | | { |
| | | 10636 | | sb.NewLineIndent(lineIndent); |
| | | 10637 | | var vType = v.Type; |
| | | 10638 | | var vIsByRef = v.IsByRef; |
| | | 10639 | | var vNameSuffix = !vIsByRef ? "" : "__discard_init_by_ref"; |
| | | 10640 | | |
| | | 10641 | | var vTypeCode = vType.ToCode(stripNamespace, printType); |
| | | 10642 | | var vName = new StringBuilder().AppendName(v, v.Name + vNameSuffix, vTypeCode, ref named); |
| | | 10643 | | sb.Append(vTypeCode).Append(' ').Append(vName).Append(vType.IsValueType && !vType.IsNullable() ? " = def |
| | | 10644 | | |
| | | 10645 | | if (vIsByRef) |
| | | 10646 | | sb.Append(" ref var ").AppendName(v, v.Name, vTypeCode, ref named).Append(" = ref ").Append(vName).A |
| | | 10647 | | } |
| | | 10648 | | |
| | | 10649 | | // we don't inline a single expression case because it can always go crazy with assignment, e.g. `var a; a = |
| | | 10650 | | for (var i = 0; i < exprs.Count - 1; i++) |
| | | 10651 | | { |
| | | 10652 | | var expr = exprs[i]; |
| | | 10653 | | |
| | | 10654 | | // this is basically the return pattern (see #237) so we don't care for the rest of the expressions |
| | | 10655 | | // Note (#300) the sentence above is slightly wrong because that may be a goto to this specific label, s |
| | | 10656 | | if (expr is GotoExpression gt && gt.Kind == GotoExpressionKind.Return && |
| | | 10657 | | exprs[i + 1] is LabelExpression label && label.Target == gt.Target) |
| | | 10658 | | { |
| | | 10659 | | sb.NewLineIndent(lineIndent); |
| | | 10660 | | if (gt.Value == null) |
| | | 10661 | | sb.Append("return;"); |
| | | 10662 | | else |
| | | 10663 | | gt.Value.ToCSharpString(sb.Append("return "), |
| | | 10664 | | EnclosedIn.Return, ref named, lineIndent, stripNamespace, printType, indentSpaces, notRecogn |
| | | 10665 | | .AppendSemicolonOnce(); |
| | | 10666 | | |
| | | 10667 | | sb.NewLineIndent(lineIndent); |
| | | 10668 | | sb.AppendLabelName(label.Target, ref named).Append(":;"); |
| | | 10669 | | |
| | | 10670 | | if (label.DefaultValue == null) |
| | | 10671 | | return sb.AppendLine(); // no return because we may have other expressions after label |
| | | 10672 | | sb.NewLineIndent(lineIndent); |
| | | 10673 | | sb.Append("return "); |
| | | 10674 | | label.DefaultValue.ToCSharpString(sb, EnclosedIn.Return, ref named, |
| | | 10675 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10676 | | return sb.AppendSemicolonOnce(); |
| | | 10677 | | } |
| | | 10678 | | |
| | | 10679 | | if (expr is BlockExpression bl) |
| | | 10680 | | { |
| | | 10681 | | // Unrolling the block on the same vertical line |
| | | 10682 | | bl.BlockToCSharpString(sb, ref named, |
| | | 10683 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode, inTheLastBlock: false) |
| | | 10684 | | } |
| | | 10685 | | else |
| | | 10686 | | { |
| | | 10687 | | sb.NewLineIndent(lineIndent); |
| | | 10688 | | expr.ToCSharpString(sb, EnclosedIn.Block, ref named, |
| | | 10689 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10690 | | |
| | | 10691 | | // Preventing the `};` kind of situation and separating the conditional block with empty line |
| | | 10692 | | var nodeType = expr.NodeType; |
| | | 10693 | | if (nodeType.IsBlockLikeOrConditional()) |
| | | 10694 | | sb.NewLineIndent(lineIndent); |
| | | 10695 | | else if (nodeType != ExpressionType.Label & nodeType != ExpressionType.Default) |
| | | 10696 | | sb.AppendSemicolonOnce(); |
| | | 10697 | | } |
| | | 10698 | | } |
| | | 10699 | | |
| | | 10700 | | var lastExpr = exprs[exprs.Count - 1]; |
| | | 10701 | | if (lastExpr.NodeType == ExpressionType.Default && lastExpr.Type == typeof(void)) |
| | | 10702 | | return sb; |
| | | 10703 | | |
| | | 10704 | | if (lastExpr is BlockExpression lastBlock) |
| | | 10705 | | return lastBlock.BlockToCSharpString(sb, ref named, |
| | | 10706 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode, |
| | | 10707 | | inTheLastBlock, // the last block is marked so if only it is itself in the last block |
| | | 10708 | | blockResultAssignment); |
| | | 10709 | | |
| | | 10710 | | // todo: @improve the label is already used by the Return GoTo we should skip it output here OR we need to r |
| | | 10711 | | if (lastExpr is LabelExpression) // keep the last label on the same vertical line |
| | | 10712 | | { |
| | | 10713 | | lastExpr.ToCSharpString(sb, EnclosedIn.Block, ref named, |
| | | 10714 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10715 | | if (inTheLastBlock) |
| | | 10716 | | sb.AppendSemicolonOnce(); // the last label forms the invalid C#, so we need at least ';' at the end |
| | | 10717 | | return sb; |
| | | 10718 | | } |
| | | 10719 | | |
| | | 10720 | | sb.NewLineIndent(lineIndent); |
| | | 10721 | | var enclosedIn = EnclosedIn.Block; |
| | | 10722 | | if (blockResultAssignment != null) |
| | | 10723 | | { |
| | | 10724 | | blockResultAssignment.Left.ToCSharpString(sb, enclosedIn, ref named, |
| | | 10725 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10726 | | if (blockResultAssignment.NodeType != ExpressionType.PowerAssign) |
| | | 10727 | | sb.Append(OperatorToCSharpString(blockResultAssignment.NodeType)); |
| | | 10728 | | else |
| | | 10729 | | { |
| | | 10730 | | sb.Append(" = System.Math.Pow("); |
| | | 10731 | | blockResultAssignment.Left.ToCSharpString(sb, enclosedIn, ref named, |
| | | 10732 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode).Append(", "); |
| | | 10733 | | } |
| | | 10734 | | } |
| | | 10735 | | else if (inTheLastBlock & !containerIgnoresResult && |
| | | 10736 | | b.Type != typeof(void) && lastExpr.Type != typeof(void)) |
| | | 10737 | | { |
| | | 10738 | | // A Trow may have the non void type, yes, so this check will avoid `return throw Ex` thingy, see #457, |
| | | 10739 | | if (lastExpr.NodeType != ExpressionType.Throw && |
| | | 10740 | | // todo: @hack if the last expression is the Assignment BinaryExpression, |
| | | 10741 | | // it is very doubtful that it is supposed to be returned result. I need to find a better indicator |
| | | 10742 | | !lastExpr.NodeType.IsAssignNodeType()) |
| | | 10743 | | { |
| | | 10744 | | enclosedIn = EnclosedIn.Return; |
| | | 10745 | | sb.Append("return "); |
| | | 10746 | | } |
| | | 10747 | | } |
| | | 10748 | | |
| | | 10749 | | if (lastExpr.NodeType.IsBlockLike() || |
| | | 10750 | | lastExpr is DefaultExpression d && d.Type == typeof(void)) |
| | | 10751 | | { |
| | | 10752 | | lastExpr.ToCSharpString(sb, EnclosedIn.Block, ref named, |
| | | 10753 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10754 | | } |
| | | 10755 | | else if (lastExpr.NodeType == ExpressionType.Assign && ((BinaryExpression)lastExpr).Right is BlockExpression |
| | | 10756 | | { |
| | | 10757 | | lastExpr.ToCSharpString(sb, EnclosedIn.Block, ref named, |
| | | 10758 | | lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10759 | | if (enclosedIn == EnclosedIn.Return) |
| | | 10760 | | sb.AppendSemicolonOnce(); |
| | | 10761 | | } |
| | | 10762 | | else |
| | | 10763 | | { |
| | | 10764 | | lastExpr.ToCSharpString(sb, enclosedIn, ref named, |
| | | 10765 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode); |
| | | 10766 | | sb = blockResultAssignment?.NodeType == ExpressionType.PowerAssign ? sb.Append(')') : sb; |
| | | 10767 | | if (lastExpr.NodeType != ExpressionType.Conditional || lastExpr.Type != typeof(void)) |
| | | 10768 | | sb.AppendSemicolonOnce(); |
| | | 10769 | | } |
| | | 10770 | | return sb; |
| | | 10771 | | } |
| | | 10772 | | |
| | | 10773 | | private static string OperatorToCSharpString(ExpressionType nodeType) => |
| | | 10774 | | nodeType switch |
| | | 10775 | | { |
| | | 10776 | | ExpressionType.And => " & ", |
| | | 10777 | | ExpressionType.AndAssign => " &= ", |
| | | 10778 | | ExpressionType.AndAlso => " && ", |
| | | 10779 | | ExpressionType.Or => " | ", |
| | | 10780 | | ExpressionType.OrAssign => " |= ", |
| | | 10781 | | ExpressionType.OrElse => " || ", |
| | | 10782 | | ExpressionType.GreaterThan => " > ", |
| | | 10783 | | ExpressionType.GreaterThanOrEqual => " >= ", |
| | | 10784 | | ExpressionType.LessThan => " < ", |
| | | 10785 | | ExpressionType.LessThanOrEqual => " <= ", |
| | | 10786 | | ExpressionType.Equal => " == ", |
| | | 10787 | | ExpressionType.NotEqual => " != ", |
| | | 10788 | | ExpressionType.Add => " + ", |
| | | 10789 | | ExpressionType.AddChecked => " + ", |
| | | 10790 | | ExpressionType.AddAssign => " += ", |
| | | 10791 | | ExpressionType.AddAssignChecked => " += ", |
| | | 10792 | | ExpressionType.Subtract => " - ", |
| | | 10793 | | ExpressionType.SubtractChecked => " - ", |
| | | 10794 | | ExpressionType.SubtractAssign => " -= ", |
| | | 10795 | | ExpressionType.SubtractAssignChecked => " -= ", |
| | | 10796 | | ExpressionType.Assign => " = ", |
| | | 10797 | | ExpressionType.ExclusiveOr => " ^ ", |
| | | 10798 | | ExpressionType.ExclusiveOrAssign => " ^= ", |
| | | 10799 | | ExpressionType.LeftShift => " << ", |
| | | 10800 | | ExpressionType.LeftShiftAssign => " <<= ", |
| | | 10801 | | ExpressionType.RightShift => " >> ", |
| | | 10802 | | ExpressionType.RightShiftAssign => " >>= ", |
| | | 10803 | | ExpressionType.Modulo => " % ", |
| | | 10804 | | ExpressionType.ModuloAssign => " %= ", |
| | | 10805 | | ExpressionType.Multiply => " * ", |
| | | 10806 | | ExpressionType.MultiplyChecked => " * ", |
| | | 10807 | | ExpressionType.MultiplyAssign => " *= ", |
| | | 10808 | | ExpressionType.MultiplyAssignChecked => " *= ", |
| | | 10809 | | ExpressionType.Divide => " / ", |
| | | 10810 | | ExpressionType.DivideAssign => " /= ", |
| | | 10811 | | _ => "???" // todo: @unclear wanna be good |
| | | 10812 | | }; |
| | | 10813 | | |
| | | 10814 | | } |
| | | 10815 | | |
| | | 10816 | | [RequiresUnreferencedCode(Trimming.Message)] |
| | | 10817 | | internal static class CodePrinter |
| | | 10818 | | { |
| | 0 | 10819 | | public static readonly Func<Type, string, string> PrintTypeStripOuterClasses = (type, name) => |
| | 0 | 10820 | | { |
| | 0 | 10821 | | if (!type.IsNested) |
| | 0 | 10822 | | return name; |
| | 0 | 10823 | | var index = name.LastIndexOf('.'); |
| | 0 | 10824 | | return index == -1 ? name : name.Substring(index + 1); |
| | 0 | 10825 | | }; |
| | | 10826 | | |
| | | 10827 | | public static StringBuilder AppendTypeOf(this StringBuilder sb, Type type, |
| | | 10828 | | bool stripNamespace = false, Func<Type, string, string> printType = null, bool printGenericTypeArgs = false) |
| | 0 | 10829 | | { |
| | 0 | 10830 | | if (type == null) |
| | 0 | 10831 | | return sb.Append("null"); |
| | 0 | 10832 | | sb.Append("typeof(").Append(type.ToCode(stripNamespace, printType, printGenericTypeArgs)).Append(')'); |
| | 0 | 10833 | | return type.IsByRef ? sb.Append(".MakeByRefType()") : sb; |
| | 0 | 10834 | | } |
| | | 10835 | | |
| | | 10836 | | public static StringBuilder AppendTypeOfList(this StringBuilder sb, Type[] types, |
| | | 10837 | | bool stripNamespace = false, Func<Type, string, string> printType = null, bool printGenericTypeArgs = false) |
| | 0 | 10838 | | { |
| | 0 | 10839 | | for (var i = 0; i < types.Length; i++) |
| | 0 | 10840 | | (i > 0 ? sb.Append(", ") : sb).AppendTypeOf(types[i], stripNamespace, printType, printGenericTypeArgs); |
| | 0 | 10841 | | return sb; |
| | 0 | 10842 | | } |
| | | 10843 | | |
| | | 10844 | | internal static StringBuilder AppendMember(this StringBuilder sb, MemberInfo member, |
| | | 10845 | | bool stripNamespace = false, Func<Type, string, string> printType = null) => |
| | 0 | 10846 | | member is FieldInfo f |
| | 0 | 10847 | | ? sb.AppendField(f, stripNamespace, printType) |
| | 0 | 10848 | | : sb.AppendProperty((PropertyInfo)member, stripNamespace, printType); |
| | | 10849 | | |
| | | 10850 | | internal static StringBuilder AppendField(this StringBuilder sb, FieldInfo field, |
| | | 10851 | | bool stripNamespace = false, Func<Type, string, string> printType = null) => |
| | 0 | 10852 | | sb.AppendTypeOf(field.DeclaringType, stripNamespace, printType) |
| | 0 | 10853 | | .Append(".GetTypeInfo().GetDeclaredField(\"").Append(field.Name).Append("\")"); |
| | | 10854 | | |
| | | 10855 | | internal static StringBuilder AppendProperty(this StringBuilder sb, PropertyInfo property, |
| | | 10856 | | bool stripNamespace = false, Func<Type, string, string> printType = null) => |
| | 0 | 10857 | | sb.AppendTypeOf(property.DeclaringType, stripNamespace, printType) |
| | 0 | 10858 | | .Append(".GetTypeInfo().GetDeclaredProperty(\"").Append(property.Name).Append("\")"); |
| | | 10859 | | |
| | | 10860 | | internal static StringBuilder AppendEnum<TEnum>(this StringBuilder sb, TEnum value, |
| | | 10861 | | bool stripNamespace = false, Func<Type, string, string> printType = null) => |
| | 0 | 10862 | | sb.Append(typeof(TEnum).ToCode(stripNamespace, printType)).Append('.') |
| | 0 | 10863 | | .Append(Enum.GetName(typeof(TEnum), value)); |
| | | 10864 | | |
| | | 10865 | | private const string _nonPubStatMethods = "BindingFlags.NonPublic|BindingFlags.Static"; |
| | | 10866 | | private const string _nonPubInstMethods = "BindingFlags.NonPublic|BindingFlags.Instance"; |
| | | 10867 | | |
| | | 10868 | | public static StringBuilder AppendMethod(this StringBuilder sb, MethodInfo method, |
| | | 10869 | | bool stripNamespace = false, Func<Type, string, string> printType = null) |
| | 0 | 10870 | | { |
| | 0 | 10871 | | if (method == null) |
| | 0 | 10872 | | return sb.Append("null"); |
| | | 10873 | | |
| | 0 | 10874 | | sb.AppendTypeOf(method.DeclaringType, stripNamespace, printType); |
| | 0 | 10875 | | sb.Append(".GetMethods("); |
| | | 10876 | | |
| | 0 | 10877 | | if (!method.IsPublic) |
| | 0 | 10878 | | sb.Append(method.IsStatic ? _nonPubStatMethods : _nonPubInstMethods); |
| | | 10879 | | |
| | 0 | 10880 | | var mp = method.GetParameters(); |
| | 0 | 10881 | | if (!method.IsGenericMethod) |
| | 0 | 10882 | | { |
| | 0 | 10883 | | sb.Append(").Single(x => !x.IsGenericMethod && x.Name == \"").Append(method.Name).Append("\" && "); |
| | 0 | 10884 | | return mp.Length == 0 |
| | 0 | 10885 | | ? sb.Append("x.GetParameters().Length == 0)") |
| | 0 | 10886 | | : sb.Append("x.GetParameters().Select(y => y.ParameterType).SequenceEqual(new[] { ") |
| | 0 | 10887 | | .AppendTypeOfList(mp.Select(x => x.ParameterType).ToArray(), stripNamespace, printType) |
| | 0 | 10888 | | .Append(" }))"); |
| | | 10889 | | } |
| | | 10890 | | |
| | 0 | 10891 | | var tp = method.GetGenericArguments(); |
| | 0 | 10892 | | sb.Append(").Where(x => x.IsGenericMethod && x.Name == \"").Append(method.Name).Append("\" && "); |
| | 0 | 10893 | | if (mp.Length == 0) |
| | 0 | 10894 | | { |
| | 0 | 10895 | | sb.Append("x.GetParameters().Length == 0 && x.GetGenericArguments().Length == ").Append(tp.Length); |
| | 0 | 10896 | | sb.Append(").Select(x => x.IsGenericMethodDefinition ? x.MakeGenericMethod(").AppendTypeOfList(tp, strip |
| | 0 | 10897 | | return sb.Append(") : x).Single()"); |
| | | 10898 | | } |
| | | 10899 | | |
| | 0 | 10900 | | sb.Append("x.GetGenericArguments().Length == ").Append(tp.Length); |
| | 0 | 10901 | | sb.Append(").Select(x => x.IsGenericMethodDefinition ? x.MakeGenericMethod(").AppendTypeOfList(tp, stripName |
| | 0 | 10902 | | sb.Append(") : x).Single(x => x.GetParameters().Select(y => y.ParameterType).SequenceEqual(new[] { "); |
| | 0 | 10903 | | sb.AppendTypeOfList(mp.Select(x => x.ParameterType).ToArray(), stripNamespace, printType); |
| | 0 | 10904 | | return sb.Append(" }))"); |
| | 0 | 10905 | | } |
| | | 10906 | | |
| | | 10907 | | /// <summary>Named with index indeed</summary> |
| | | 10908 | | internal struct NamedWithIndex |
| | | 10909 | | { |
| | | 10910 | | /// <summary>Named</summary> |
| | | 10911 | | public object Named; |
| | | 10912 | | /// <summary>Provides an unique suffix for the same named things</summary> |
| | | 10913 | | public int Index; |
| | | 10914 | | } |
| | | 10915 | | |
| | | 10916 | | internal static StringBuilder AppendName(this StringBuilder sb, object parOrTarget, string name, string typeCode |
| | | 10917 | | ref SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named, |
| | | 10918 | | int noNameIndex = 0) |
| | 0 | 10919 | | { |
| | 0 | 10920 | | var nameIndex = 0; |
| | 0 | 10921 | | if (noNameIndex == 0) |
| | 0 | 10922 | | { |
| | 0 | 10923 | | var found = false; |
| | 0 | 10924 | | foreach (var n in named) |
| | 0 | 10925 | | { |
| | 0 | 10926 | | if (found = ReferenceEquals(n.Named, parOrTarget)) |
| | 0 | 10927 | | { |
| | 0 | 10928 | | nameIndex = n.Index; |
| | 0 | 10929 | | break; |
| | | 10930 | | } |
| | 0 | 10931 | | if (n.Named is ParameterExpression pe1 && parOrTarget is ParameterExpression pe2 && pe1.Name == pe2. |
| | 0 | 10932 | | n.Named is LabelTarget lt1 && parOrTarget is LabelTarget lt2 && lt1.Name == lt2.Name) |
| | 0 | 10933 | | ++nameIndex; |
| | 0 | 10934 | | } |
| | 0 | 10935 | | if (!found) |
| | 0 | 10936 | | named.Add(new NamedWithIndex { Named = parOrTarget, Index = nameIndex }); |
| | 0 | 10937 | | noNameIndex = nameIndex; |
| | 0 | 10938 | | } |
| | | 10939 | | |
| | 0 | 10940 | | if (!string.IsNullOrWhiteSpace(name)) |
| | 0 | 10941 | | { |
| | 0 | 10942 | | sb.Append(name); |
| | 0 | 10943 | | return nameIndex == 0 ? sb : sb.Append('_').Append(nameIndex); |
| | | 10944 | | } |
| | 0 | 10945 | | var validTypeIdent = typeCode |
| | 0 | 10946 | | .Replace('.', '_') |
| | 0 | 10947 | | .Replace('<', '_') |
| | 0 | 10948 | | .Replace('>', '_') |
| | 0 | 10949 | | .Replace(", ", "_") |
| | 0 | 10950 | | .Replace("?", "") |
| | 0 | 10951 | | .Replace("[]", "_arr") |
| | 0 | 10952 | | .ToLowerInvariant(); |
| | | 10953 | | |
| | 0 | 10954 | | return sb.Append(validTypeIdent).Append('_').Append(noNameIndex); |
| | 0 | 10955 | | } |
| | | 10956 | | |
| | | 10957 | | internal static StringBuilder AppendLabelName(this StringBuilder sb, LabelTarget target, |
| | | 10958 | | ref SmallList<NamedWithIndex, Stack4<NamedWithIndex>> named) => |
| | 0 | 10959 | | sb.AppendName(target, target.Name, target.Type.ToCode(stripNamespace: true), ref named); |
| | | 10960 | | |
| | | 10961 | | /// <summary>Returns the standard name (alias) for the well-known primitive type, e.g. Int16 -> short</summary> |
| | | 10962 | | public static string GetPrimitiveTypeNameAliasOrNull(this Type type) => |
| | 7982 | 10963 | | Type.GetTypeCode(type) switch |
| | 7982 | 10964 | | { |
| | 4 | 10965 | | TypeCode.Byte => "byte", |
| | 4 | 10966 | | TypeCode.SByte => "sbyte", |
| | 4 | 10967 | | TypeCode.Int16 => "short", |
| | 178 | 10968 | | TypeCode.Int32 => "int", |
| | 91 | 10969 | | TypeCode.Int64 => "long", |
| | 4 | 10970 | | TypeCode.UInt16 => "ushort", |
| | 4 | 10971 | | TypeCode.UInt32 => "uint", |
| | 4 | 10972 | | TypeCode.UInt64 => "ulong", |
| | 4 | 10973 | | TypeCode.Single => "float", |
| | 4 | 10974 | | TypeCode.Double => "double", |
| | 738 | 10975 | | TypeCode.Boolean => "bool", |
| | 287 | 10976 | | TypeCode.Char => "char", |
| | 199 | 10977 | | TypeCode.String => "string", |
| | 6457 | 10978 | | _ => type == typeof(void) ? "void" : |
| | 6457 | 10979 | | type == typeof(object) ? "object" : |
| | 6457 | 10980 | | null |
| | 7982 | 10981 | | }; |
| | | 10982 | | |
| | | 10983 | | // todo: @simplify add `addTypeof = false` or use `AppendTypeOf` generally |
| | | 10984 | | /// <summary>Converts the <paramref name="type"/> into the proper C# representation.</summary> |
| | | 10985 | | public static string ToCode(this Type type, |
| | | 10986 | | bool stripNamespace = false, Func<Type, string, string> printType = null, bool printGenericTypeArgs = false) |
| | 7998 | 10987 | | { |
| | 7998 | 10988 | | if (type == null) |
| | 0 | 10989 | | return "null"; |
| | | 10990 | | |
| | 7998 | 10991 | | if (type.IsGenericParameter) |
| | 0 | 10992 | | return !printGenericTypeArgs ? string.Empty : (printType?.Invoke(type, type.Name) ?? type.Name); |
| | | 10993 | | |
| | 7998 | 10994 | | if (Nullable.GetUnderlyingType(type) is Type nullableElementType && !type.IsGenericTypeDefinition) |
| | 16 | 10995 | | { |
| | 16 | 10996 | | var result = nullableElementType.ToCode(stripNamespace, printType, printGenericTypeArgs) + "?"; |
| | 16 | 10997 | | return printType?.Invoke(type, result) ?? result; |
| | | 10998 | | } |
| | | 10999 | | |
| | 7982 | 11000 | | Type arrayType = null; |
| | 7982 | 11001 | | if (type.IsArray) |
| | 174 | 11002 | | { |
| | | 11003 | | // store the original type for the later and process its element type further here |
| | 174 | 11004 | | arrayType = type; |
| | 174 | 11005 | | type = type.GetElementType(); |
| | 174 | 11006 | | } |
| | | 11007 | | |
| | 7982 | 11008 | | var buildInTypeString = type.GetPrimitiveTypeNameAliasOrNull(); |
| | 7982 | 11009 | | if (buildInTypeString != null) |
| | 2051 | 11010 | | { |
| | 2051 | 11011 | | if (arrayType != null) |
| | 166 | 11012 | | buildInTypeString += "[]"; |
| | 2051 | 11013 | | return printType?.Invoke(arrayType ?? type, buildInTypeString) ?? buildInTypeString; |
| | | 11014 | | } |
| | | 11015 | | |
| | 5931 | 11016 | | var parentCount = 0; |
| | 12220 | 11017 | | for (var ti = type.GetTypeInfo(); ti.IsNested; ti = ti.DeclaringType.GetTypeInfo()) |
| | 179 | 11018 | | ++parentCount; |
| | | 11019 | | |
| | 5931 | 11020 | | Type[] parentTypes = null; |
| | 5931 | 11021 | | if (parentCount > 0) |
| | 179 | 11022 | | { |
| | 179 | 11023 | | parentTypes = new Type[parentCount]; |
| | 179 | 11024 | | var pt = type.DeclaringType; |
| | 895 | 11025 | | for (var i = 0; i < parentTypes.Length; i++, pt = pt.DeclaringType) |
| | 179 | 11026 | | parentTypes[i] = pt; |
| | 179 | 11027 | | } |
| | | 11028 | | |
| | 5931 | 11029 | | var typeInfo = type.GetTypeInfo(); |
| | 5931 | 11030 | | Type[] typeArgs = null; |
| | 5931 | 11031 | | var isTypeClosedGeneric = false; |
| | 5931 | 11032 | | if (type.IsGenericType) |
| | 778 | 11033 | | { |
| | 778 | 11034 | | isTypeClosedGeneric = !typeInfo.IsGenericTypeDefinition; |
| | 778 | 11035 | | typeArgs = isTypeClosedGeneric ? typeInfo.GenericTypeArguments : typeInfo.GenericTypeParameters; |
| | 778 | 11036 | | } |
| | | 11037 | | |
| | 5931 | 11038 | | var typeArgsConsumedByParentsCount = 0; |
| | 5931 | 11039 | | var s = new StringBuilder(); |
| | 5931 | 11040 | | if (!stripNamespace && !string.IsNullOrEmpty(type.Namespace)) // for the auto-generated classes Namespace ma |
| | 0 | 11041 | | s.Append(type.Namespace).Append('.'); |
| | | 11042 | | |
| | 5931 | 11043 | | if (parentTypes != null) |
| | 179 | 11044 | | { |
| | 716 | 11045 | | for (var p = parentTypes.Length - 1; p >= 0; --p) |
| | 179 | 11046 | | { |
| | 179 | 11047 | | var parentType = parentTypes[p]; |
| | 179 | 11048 | | if (!parentType.IsGenericType) |
| | 166 | 11049 | | { |
| | 166 | 11050 | | s.Append(parentType.Name).Append('.'); |
| | 166 | 11051 | | } |
| | | 11052 | | else |
| | 13 | 11053 | | { |
| | 13 | 11054 | | var parentTypeInfo = parentType.GetTypeInfo(); |
| | 13 | 11055 | | Type[] parentTypeArgs = null; |
| | 13 | 11056 | | if (parentTypeInfo.IsGenericTypeDefinition) |
| | 13 | 11057 | | { |
| | 13 | 11058 | | parentTypeArgs = parentTypeInfo.GenericTypeParameters; |
| | | 11059 | | |
| | | 11060 | | // replace the open parent args with the closed child args, |
| | | 11061 | | // and close the parent |
| | 13 | 11062 | | if (isTypeClosedGeneric) |
| | 52 | 11063 | | for (var t = 0; t < parentTypeArgs.Length; ++t) |
| | 13 | 11064 | | parentTypeArgs[t] = typeArgs[t]; |
| | | 11065 | | |
| | 13 | 11066 | | var parentTypeArgCount = parentTypeArgs.Length; |
| | 13 | 11067 | | if (typeArgsConsumedByParentsCount > 0) |
| | 0 | 11068 | | { |
| | 0 | 11069 | | int ownArgCount = parentTypeArgCount - typeArgsConsumedByParentsCount; |
| | 0 | 11070 | | if (ownArgCount == 0) |
| | 0 | 11071 | | parentTypeArgs = null; |
| | | 11072 | | else |
| | 0 | 11073 | | { |
| | 0 | 11074 | | var ownArgs = new Type[ownArgCount]; |
| | 0 | 11075 | | for (var a = 0; a < ownArgs.Length; ++a) |
| | 0 | 11076 | | ownArgs[a] = parentTypeArgs[a + typeArgsConsumedByParentsCount]; |
| | 0 | 11077 | | parentTypeArgs = ownArgs; |
| | 0 | 11078 | | } |
| | 0 | 11079 | | } |
| | 13 | 11080 | | typeArgsConsumedByParentsCount = parentTypeArgCount; |
| | 13 | 11081 | | } |
| | | 11082 | | else |
| | 0 | 11083 | | { |
| | 0 | 11084 | | parentTypeArgs = parentTypeInfo.GenericTypeArguments; |
| | 0 | 11085 | | } |
| | | 11086 | | |
| | 13 | 11087 | | var parentTickIndex = parentType.Name.IndexOf('`'); |
| | 13 | 11088 | | s.Append(parentType.Name.Substring(0, parentTickIndex)); |
| | | 11089 | | |
| | | 11090 | | // The owned parentTypeArgs maybe empty because all args are defined in the parent's parents |
| | 13 | 11091 | | if (parentTypeArgs?.Length > 0) |
| | 13 | 11092 | | { |
| | 13 | 11093 | | s.Append('<'); |
| | 52 | 11094 | | for (var t = 0; t < parentTypeArgs.Length; ++t) |
| | 13 | 11095 | | (t == 0 ? s : s.Append(", ")).Append(parentTypeArgs[t].ToCode(stripNamespace, printType, |
| | 13 | 11096 | | s.Append('>'); |
| | 13 | 11097 | | } |
| | 13 | 11098 | | s.Append('.'); |
| | 13 | 11099 | | } |
| | 179 | 11100 | | } |
| | 179 | 11101 | | } |
| | 5931 | 11102 | | var name = type.Name.TrimStart('<', '>').TrimEnd('&'); |
| | | 11103 | | |
| | 5931 | 11104 | | if (typeArgs != null && typeArgsConsumedByParentsCount < typeArgs.Length) |
| | 765 | 11105 | | { |
| | 765 | 11106 | | var tickIndex = name.IndexOf('`'); |
| | 765 | 11107 | | s.Append(name.Substring(0, tickIndex)).Append('<'); |
| | 4144 | 11108 | | for (var i = 0; i < typeArgs.Length - typeArgsConsumedByParentsCount; ++i) |
| | 1307 | 11109 | | (i == 0 ? s : s.Append(", ")).Append(typeArgs[i + typeArgsConsumedByParentsCount].ToCode(stripNamesp |
| | 765 | 11110 | | s.Append('>'); |
| | 765 | 11111 | | } |
| | | 11112 | | else |
| | 5166 | 11113 | | { |
| | 5166 | 11114 | | s.Append(name); |
| | 5166 | 11115 | | } |
| | | 11116 | | |
| | 5931 | 11117 | | if (arrayType != null) |
| | 8 | 11118 | | s.Append("[]"); |
| | | 11119 | | |
| | 5931 | 11120 | | return printType?.Invoke(arrayType ?? type, s.ToString()) ?? s.ToString(); |
| | 7998 | 11121 | | } |
| | | 11122 | | |
| | | 11123 | | /// <summary>Prints valid C# Boolean</summary> |
| | 0 | 11124 | | public static string ToCode(this bool x) => x ? "true" : "false"; |
| | | 11125 | | |
| | | 11126 | | /// <summary>Prints valid C# String escaping the things</summary> |
| | | 11127 | | public static string ToCode(this string x) => |
| | 0 | 11128 | | x == null ? "null" |
| | 0 | 11129 | | : $"\"{x.Replace("\"", "\\\"").Replace("\r", "\\r").Replace("\n", "\\n")}\""; |
| | | 11130 | | |
| | 0 | 11131 | | private static readonly char[] _enumValueSeparators = new[] { ',', ' ' }; |
| | | 11132 | | |
| | | 11133 | | /// <summary>Prints valid C# Enum literal</summary> |
| | | 11134 | | public static string ToEnumValueCode(this Type enumType, object x, |
| | | 11135 | | bool stripNamespace = false, Func<Type, string, string> printType = null) |
| | 0 | 11136 | | { |
| | 0 | 11137 | | var typeStr = enumType.ToCode(stripNamespace, printType); |
| | 0 | 11138 | | var valueStr = x.ToString(); |
| | 0 | 11139 | | var flags = valueStr.Split(_enumValueSeparators, StringSplitOptions.RemoveEmptyEntries); |
| | 0 | 11140 | | if (flags.Length == 1) |
| | 0 | 11141 | | { |
| | 0 | 11142 | | if (int.TryParse(valueStr, out _)) |
| | 0 | 11143 | | return "(" + typeStr + ")" + valueStr; |
| | 0 | 11144 | | return typeStr + "." + valueStr; |
| | | 11145 | | } |
| | 0 | 11146 | | var orTypeDot = "|" + typeStr + "."; |
| | 0 | 11147 | | return typeStr + "." + string.Join(orTypeDot, flags); |
| | 0 | 11148 | | } |
| | | 11149 | | |
| | | 11150 | | private static Type[] GetGenericTypeParametersOrArguments(this TypeInfo typeInfo) => |
| | 0 | 11151 | | typeInfo.IsGenericTypeDefinition ? typeInfo.GenericTypeParameters : typeInfo.GenericTypeArguments; |
| | | 11152 | | |
| | | 11153 | | /// <summary>Custom handler for output the object in valid C#. |
| | | 11154 | | /// Note, the `printGenericTypeArgs` is excluded because it cannot be a open-generic object. |
| | | 11155 | | /// This handler is also used to allow user to fully control a Constant expression output</summary> |
| | | 11156 | | internal delegate string ObjectToCode(object x, bool stripNamespace = false, Func<Type, string, string> printTyp |
| | | 11157 | | |
| | | 11158 | | /// <summary>Outputs the `default(Type)` for the unknown constant with the comment message</summary> |
| | 0 | 11159 | | public static readonly ObjectToCode DefaultNotRecognizedToCode = (x, stripNamespace, printType) => |
| | 0 | 11160 | | { |
| | 0 | 11161 | | var t = x.GetType(); |
| | 0 | 11162 | | var isCompGen = t.IsCompilerGenerated(); |
| | 0 | 11163 | | var typeCs = x.GetType().ToCode(stripNamespace, printType); |
| | 0 | 11164 | | return $"default({typeCs})/*NOTE: Provide the non-default value for the Constant{(isCompGen ? " of compiler- |
| | 0 | 11165 | | }; |
| | | 11166 | | |
| | | 11167 | | /// <summary>Prints many code items as the array initializer.</summary> |
| | | 11168 | | public static string ToCommaSeparatedCode(this IEnumerable items, ObjectToCode notRecognizedToCode, |
| | | 11169 | | bool stripNamespace = false, Func<Type, string, string> printType = null) |
| | 0 | 11170 | | { |
| | 0 | 11171 | | var s = new StringBuilder(); |
| | 0 | 11172 | | var first = true; |
| | 0 | 11173 | | foreach (var item in items) |
| | 0 | 11174 | | { |
| | 0 | 11175 | | if (!first) |
| | 0 | 11176 | | s.Append(", "); |
| | 0 | 11177 | | first = false; |
| | 0 | 11178 | | s.Append(item.ToCode(notRecognizedToCode, stripNamespace, printType)); |
| | 0 | 11179 | | } |
| | 0 | 11180 | | return s.ToString(); |
| | 0 | 11181 | | } |
| | | 11182 | | |
| | | 11183 | | /// <summary>Prints many code items as array initializer.</summary> |
| | | 11184 | | public static string ToArrayInitializerCode(this IEnumerable items, Type itemType, ObjectToCode notRecognizedToC |
| | | 11185 | | bool stripNamespace = false, Func<Type, string, string> printType = null) |
| | 0 | 11186 | | { |
| | 0 | 11187 | | var s = new StringBuilder("new "); |
| | | 11188 | | // todo: @simplify should we avoid type for the `new Type` because the values also will include the type? |
| | 0 | 11189 | | s.Append(itemType.ToCode(stripNamespace, printType)); |
| | 0 | 11190 | | s.Append("[]{"); |
| | 0 | 11191 | | s.Append(items.ToCommaSeparatedCode(notRecognizedToCode, stripNamespace, printType)); |
| | 0 | 11192 | | s.Append('}'); |
| | 0 | 11193 | | return s.ToString(); |
| | 0 | 11194 | | } |
| | | 11195 | | |
| | 0 | 11196 | | private static readonly Type[] TypesImplementedByArray = |
| | 0 | 11197 | | typeof(object[]).GetInterfaces().Where(t => t.GetTypeInfo().IsGenericType).Select(t => t.GetGenericTypeDefin |
| | | 11198 | | |
| | | 11199 | | // todo: @simplify convert to using StringBuilder and simplify usage call-sites, or ADD the method |
| | | 11200 | | // todo: @simplify add `addTypeof = false` |
| | | 11201 | | /// <summary> |
| | | 11202 | | /// Prints a valid C# for known <paramref name="x"/>, |
| | | 11203 | | /// otherwise uses passed <paramref name="notRecognizedToCode"/> or falls back to `ToString()`. |
| | | 11204 | | /// </summary> |
| | | 11205 | | [System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode(Trimming.Message)] |
| | | 11206 | | public static string ToCode(this object x, |
| | | 11207 | | ObjectToCode notRecognizedToCode = null, bool stripNamespace = false, Func<Type, string, string> printType = |
| | 0 | 11208 | | { |
| | 0 | 11209 | | if (x == null) |
| | 0 | 11210 | | return "null"; |
| | | 11211 | | |
| | 0 | 11212 | | if (x is bool b) |
| | 0 | 11213 | | return b.ToCode(); |
| | | 11214 | | |
| | 0 | 11215 | | if (x is int i) |
| | 0 | 11216 | | return i.ToString(); |
| | | 11217 | | |
| | 0 | 11218 | | if (x is double d) |
| | 0 | 11219 | | return d.ToString(); |
| | | 11220 | | |
| | 0 | 11221 | | if (x is string s) |
| | 0 | 11222 | | return s.ToCode(); |
| | | 11223 | | |
| | 0 | 11224 | | if (x is char c) |
| | 0 | 11225 | | return "'" + c + "'"; |
| | | 11226 | | |
| | 0 | 11227 | | if (x is Decimal m) |
| | 0 | 11228 | | return $"{m}m"; |
| | | 11229 | | |
| | 0 | 11230 | | if (x is Type t) |
| | 0 | 11231 | | return t.ToCode(stripNamespace, printType); |
| | | 11232 | | |
| | 0 | 11233 | | if (x is Guid guid) |
| | 0 | 11234 | | return "Guid.Parse(" + guid.ToString().ToCode() + ")"; |
| | | 11235 | | |
| | 0 | 11236 | | if (x is DateTime date) |
| | 0 | 11237 | | return "DateTime.Parse(" + date.ToString().ToCode() + ")"; |
| | | 11238 | | |
| | 0 | 11239 | | if (x is TimeSpan time) |
| | 0 | 11240 | | return "TimeSpan.Parse(" + time.ToString().ToCode() + ")"; |
| | | 11241 | | |
| | 0 | 11242 | | var xType = x.GetType(); |
| | 0 | 11243 | | var xTypeInfo = xType.GetTypeInfo(); |
| | | 11244 | | |
| | | 11245 | | // check if item is implemented by array and then use the array initializer only for these types, |
| | | 11246 | | // otherwise we may produce the array initializer but it will be incompatible with e.g. `List<T>` |
| | 0 | 11247 | | if (xTypeInfo.IsArray || |
| | 0 | 11248 | | xTypeInfo.IsGenericType && TypesImplementedByArray.Contains(xType.GetGenericTypeDefinition())) |
| | 0 | 11249 | | { |
| | 0 | 11250 | | var elemType = xTypeInfo.IsArray |
| | 0 | 11251 | | ? xTypeInfo.GetElementType() |
| | 0 | 11252 | | : xTypeInfo.GetGenericTypeParametersOrArguments().GetFirst(); |
| | 0 | 11253 | | if (elemType != null && elemType != xType) // avoid self recurring types e.g. `class A : IEnumerable<A>` |
| | 0 | 11254 | | return ((IEnumerable)x).ToArrayInitializerCode(elemType, notRecognizedToCode, stripNamespace, printT |
| | 0 | 11255 | | } |
| | | 11256 | | |
| | | 11257 | | // unwrap the Nullable struct |
| | 0 | 11258 | | if (xTypeInfo.IsGenericType && xTypeInfo.GetGenericTypeDefinition() == typeof(Nullable<>)) |
| | 0 | 11259 | | { |
| | 0 | 11260 | | xType = xTypeInfo.GetElementType(); |
| | 0 | 11261 | | xTypeInfo = xType.GetTypeInfo(); |
| | 0 | 11262 | | } |
| | | 11263 | | |
| | 0 | 11264 | | if (xTypeInfo.IsEnum) |
| | 0 | 11265 | | return x.GetType().ToEnumValueCode(x, stripNamespace, printType); |
| | | 11266 | | |
| | 0 | 11267 | | if (xTypeInfo.IsPrimitive) // output the primitive casted to the type |
| | 0 | 11268 | | return "(" + x.GetType().ToCode(true, null) + ")" + x.ToString(); |
| | | 11269 | | |
| | 0 | 11270 | | return notRecognizedToCode?.Invoke(x, stripNamespace, printType) ?? x.ToString(); |
| | 0 | 11271 | | } |
| | | 11272 | | |
| | | 11273 | | internal static StringBuilder NewLineIndent(this StringBuilder sb, int lineIndent) |
| | 0 | 11274 | | { |
| | 0 | 11275 | | var originalLength = sb.Length; |
| | 0 | 11276 | | sb.AppendNewLineOnce(); |
| | 0 | 11277 | | return originalLength == sb.Length ? sb : sb.Append(' ', lineIndent); |
| | 0 | 11278 | | } |
| | | 11279 | | |
| | | 11280 | | internal static StringBuilder NewLineIndentExpr(this StringBuilder sb, |
| | | 11281 | | Expression expr, List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 11282 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | 0 | 11283 | | { |
| | 0 | 11284 | | sb.NewLineIndent(lineIndent); |
| | 0 | 11285 | | return expr?.ToExpressionString(sb, paramsExprs, uniqueExprs, lts, |
| | 0 | 11286 | | lineIndent + indentSpaces, stripNamespace, printType, indentSpaces, notRecognizedToCode) ?? sb.Append("n |
| | 0 | 11287 | | } |
| | | 11288 | | |
| | | 11289 | | internal static StringBuilder NewLineIndentArgumentExprs<T>(this StringBuilder sb, IReadOnlyList<T> exprs, |
| | | 11290 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 11291 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 11292 | | where T : Expression |
| | 0 | 11293 | | { |
| | 0 | 11294 | | if (exprs.Count == 0) |
| | 0 | 11295 | | return sb.Append(" new ").Append(typeof(T).ToCode(true)).Append("[0]"); |
| | 0 | 11296 | | for (var i = 0; i < exprs.Count; i++) |
| | 0 | 11297 | | (i > 0 ? sb.Append(", ") : sb).NewLineIndentExpr(exprs[i], |
| | 0 | 11298 | | paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToC |
| | 0 | 11299 | | return sb; |
| | 0 | 11300 | | } |
| | | 11301 | | |
| | | 11302 | | // todo: @improve figure how to avoid the duplication with the method above IReadOnlyList<T> exprs |
| | | 11303 | | internal static StringBuilder NewLineIndentArgumentExprs<T>(this StringBuilder sb, SmallList<T, Stack2<T>> exprs |
| | | 11304 | | List<ParameterExpression> paramsExprs, List<Expression> uniqueExprs, List<LabelTarget> lts, |
| | | 11305 | | int lineIndent, bool stripNamespace, Func<Type, string, string> printType, int indentSpaces, ObjectToCode no |
| | | 11306 | | where T : Expression |
| | 0 | 11307 | | { |
| | 0 | 11308 | | if (exprs.Count == 0) |
| | 0 | 11309 | | return sb.Append(" new ").Append(typeof(T).ToCode(true)).Append("[0]"); |
| | 0 | 11310 | | for (var i = 0; i < exprs.Count; i++) |
| | 0 | 11311 | | (i > 0 ? sb.Append(", ") : sb).NewLineIndentExpr(exprs.GetSurePresentItemRef(i), |
| | 0 | 11312 | | paramsExprs, uniqueExprs, lts, lineIndent, stripNamespace, printType, indentSpaces, notRecognizedToC |
| | 0 | 11313 | | return sb; |
| | 0 | 11314 | | } |
| | | 11315 | | |
| | | 11316 | | /// <summary>Helper method to find the number of lambdas in the C# code string</summary> |
| | | 11317 | | public static int CountLambdas(string code) |
| | 0 | 11318 | | { |
| | 0 | 11319 | | int lambdaCount = 0, lambdaIndex = 0; |
| | 0 | 11320 | | while (true) |
| | 0 | 11321 | | { |
| | 0 | 11322 | | lambdaIndex = code.IndexOf("=>", lambdaIndex + 2); |
| | 0 | 11323 | | if (lambdaIndex == -1) |
| | 0 | 11324 | | break; |
| | 0 | 11325 | | ++lambdaCount; |
| | 0 | 11326 | | } |
| | 0 | 11327 | | return lambdaCount; |
| | 0 | 11328 | | } |
| | | 11329 | | } |
| | | 11330 | | |
| | | 11331 | | internal static class FecHelpers |
| | | 11332 | | { |
| | | 11333 | | public static int GetFirstIndex<T, TEq>(this IReadOnlyList<T> source, T item, TEq eq = default) |
| | | 11334 | | where TEq : struct, IEq<T> |
| | | 11335 | | { |
| | | 11336 | | if (source.Count != 0) |
| | | 11337 | | for (var i = 0; i < source.Count; ++i) |
| | | 11338 | | if (eq.Equals(source[i], item)) |
| | | 11339 | | return i; |
| | | 11340 | | return -1; |
| | | 11341 | | } |
| | | 11342 | | |
| | | 11343 | | [MethodImpl((MethodImplOptions)256)] |
| | | 11344 | | public static T GetArgument<T>(this IReadOnlyList<T> source, int index) => source[index]; |
| | | 11345 | | |
| | | 11346 | | [MethodImpl((MethodImplOptions)256)] |
| | | 11347 | | public static ParameterExpression GetParameter(this IReadOnlyList<PE> source, int index) => source[index]; |
| | | 11348 | | |
| | | 11349 | | #if LIGHT_EXPRESSION |
| | | 11350 | | public static IReadOnlyList<PE> ToReadOnlyList(this IParameterProvider source) |
| | | 11351 | | { |
| | | 11352 | | var count = source.ParameterCount; |
| | | 11353 | | var ps = new ParameterExpression[count]; |
| | | 11354 | | for (var i = 0; i < count; ++i) |
| | | 11355 | | ps[i] = source.GetParameter(i); |
| | | 11356 | | return ps; |
| | | 11357 | | } |
| | | 11358 | | |
| | | 11359 | | public static int GetCount(this IParameterProvider p) => p.ParameterCount; |
| | | 11360 | | #else |
| | | 11361 | | public static IReadOnlyList<PE> ToReadOnlyList(this IReadOnlyList<PE> source) => source; |
| | | 11362 | | |
| | | 11363 | | public static int GetCount(this IReadOnlyList<PE> p) => p.Count; |
| | | 11364 | | #endif |
| | | 11365 | | |
| | | 11366 | | #if SUPPORTS_ARGUMENT_PROVIDER |
| | | 11367 | | public static int GetCount(this IArgumentProvider p) => p.ArgumentCount; |
| | | 11368 | | #else |
| | | 11369 | | public static int GetCount(this IReadOnlyList<Expression> p) => p.Count; |
| | | 11370 | | #endif |
| | | 11371 | | } |
| | | 11372 | | |
| | | 11373 | | internal static class Trimming |
| | | 11374 | | { |
| | | 11375 | | public const string Message = "FastExpressionCompiler is not supported in trimming scenarios."; |
| | | 11376 | | } |
| | | 11377 | | } |
| | | 11378 | | |
| | | 11379 | | #if !NET5_0_OR_GREATER |
| | | 11380 | | namespace System.Diagnostics.CodeAnalysis |
| | | 11381 | | { |
| | | 11382 | | [AttributeUsage(AttributeTargets.All, Inherited = false, AllowMultiple = true)] |
| | | 11383 | | internal sealed class UnconditionalSuppressMessageAttribute : Attribute |
| | | 11384 | | { |
| | | 11385 | | public string Category { get; } |
| | | 11386 | | public string CheckId { get; } |
| | | 11387 | | public string Justification { get; set; } |
| | | 11388 | | public UnconditionalSuppressMessageAttribute(string category, string checkId) |
| | | 11389 | | { |
| | | 11390 | | Category = category; |
| | | 11391 | | CheckId = checkId; |
| | | 11392 | | } |
| | | 11393 | | } |
| | | 11394 | | |
| | | 11395 | | [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class, Inherited = false)] |
| | | 11396 | | internal sealed class RequiresUnreferencedCodeAttribute : Attribute |
| | | 11397 | | { |
| | | 11398 | | public string Message { get; } |
| | | 11399 | | public RequiresUnreferencedCodeAttribute(string message) => Message = message; |
| | | 11400 | | } |
| | | 11401 | | |
| | | 11402 | | [AttributeUsage( |
| | | 11403 | | AttributeTargets.Field | AttributeTargets.ReturnValue | AttributeTargets.GenericParameter | |
| | | 11404 | | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.Method | |
| | | 11405 | | AttributeTargets.Class | AttributeTargets.Interface | AttributeTargets.Struct, |
| | | 11406 | | Inherited = false)] |
| | | 11407 | | internal sealed class DynamicallyAccessedMembersAttribute : Attribute |
| | | 11408 | | { |
| | | 11409 | | public DynamicallyAccessedMembersAttribute(DynamicallyAccessedMemberTypes memberTypes) { } |
| | | 11410 | | } |
| | | 11411 | | |
| | | 11412 | | [Flags] |
| | | 11413 | | internal enum DynamicallyAccessedMemberTypes |
| | | 11414 | | { |
| | | 11415 | | None = 0, |
| | | 11416 | | PublicParameterlessConstructor = 0x0001, |
| | | 11417 | | PublicConstructors = 0x0002 | PublicParameterlessConstructor, |
| | | 11418 | | NonPublicConstructors = 0x0004, |
| | | 11419 | | PublicMethods = 0x0008, |
| | | 11420 | | NonPublicMethods = 0x0010, |
| | | 11421 | | PublicFields = 0x0020, |
| | | 11422 | | NonPublicFields = 0x0040, |
| | | 11423 | | PublicNestedTypes = 0x0080, |
| | | 11424 | | NonPublicNestedTypes = 0x0100, |
| | | 11425 | | PublicProperties = 0x0200, |
| | | 11426 | | NonPublicProperties = 0x0400, |
| | | 11427 | | |
| | | 11428 | | Interfaces = 0x2000, |
| | | 11429 | | All = ~None |
| | | 11430 | | } |
| | | 11431 | | } |
| | | 11432 | | #endif |
| | | 11433 | | #if !NET7_0_OR_GREATER |
| | | 11434 | | namespace System.Diagnostics.CodeAnalysis |
| | | 11435 | | { |
| | | 11436 | | [AttributeUsage(System.AttributeTargets.Method | System.AttributeTargets.Parameter | System.AttributeTargets.Propert |
| | | 11437 | | internal sealed class UnscopedRefAttribute : Attribute { } |
| | | 11438 | | } |
| | | 11439 | | #endif |